From 3207422651f889644c26344e3f709370a8eaa852 Mon Sep 17 00:00:00 2001
From: sudipnext <parajulisudip123@outlook.com>
Date: Sat, 28 Mar 2026 15:34:53 +0545
Subject: [PATCH 1/3] feat: add language parameter to decomposeDocuments API
 call

- Updated the decomposeDocuments method in PresentationGenerationApi to accept an optional language parameter.
- Modified the UploadPage component to pass the selected language from the config when calling the decomposeDocuments method.
---
 electron/app/ipc/setup_install_handlers.ts    | 167 +++-
 electron/app/main.ts                          |  11 +-
 electron/app/preloads/setup-installer.ts      |  11 +
 electron/app/types/index.d.ts                 |   2 +
 electron/app/utils/imagemagick-check.ts       |  27 +
 electron/app/utils/liteparse-check.ts         |  28 +
 electron/app/utils/puppeteer-check.ts         |   1 +
 electron/app/utils/setup-dependencies.ts      |  24 +-
 electron/package-lock.json                    | 470 +++++++++-
 electron/package.json                         |   5 +-
 .../document-extraction/liteparse_runner.mjs  | 147 ++++
 .../document-extraction/package.json          |   8 +
 electron/resources/ui/homepage/script.js      |   3 +
 .../resources/ui/setup-installer/index.html   |  77 +-
 .../fastapi/api/v1/ppt/endpoints/files.py     |  10 +-
 .../fastapi/api/v1/ppt/endpoints/outlines.py  |   5 +-
 .../api/v1/ppt/endpoints/presentation.py      |   5 +-
 .../servers/fastapi/constants/documents.py    |   3 +-
 .../fastapi/models/decompose_files_body.py    |  11 +
 electron/servers/fastapi/pyproject.toml       |  92 +-
 .../servers/fastapi/runtime_hook_docling.py   |  78 --
 electron/servers/fastapi/server.spec          |  20 +-
 .../fastapi/services/docling_service.py       |  38 -
 .../fastapi/services/documents_loader.py      |  88 +-
 .../services/lightweight_document_service.py  | 354 ++++----
 .../fastapi/services/liteparse_service.py     | 197 +++++
 .../servers/fastapi/utils/ocr_language.py     | 126 +++
 .../servers/fastapi/utils/path_helpers.py     |   2 +-
 electron/servers/fastapi/uv.lock              | 826 +-----------------
 .../services/api/presentation-generation.ts   |   6 +-
 .../upload/components/UploadPage.tsx          |   7 +-
 31 files changed, 1554 insertions(+), 1295 deletions(-)
 create mode 100644 electron/app/utils/imagemagick-check.ts
 create mode 100644 electron/app/utils/liteparse-check.ts
 create mode 100644 electron/resources/document-extraction/liteparse_runner.mjs
 create mode 100644 electron/resources/document-extraction/package.json
 create mode 100644 electron/servers/fastapi/models/decompose_files_body.py
 delete mode 100644 electron/servers/fastapi/runtime_hook_docling.py
 delete mode 100644 electron/servers/fastapi/services/docling_service.py
 create mode 100644 electron/servers/fastapi/services/liteparse_service.py
 create mode 100644 electron/servers/fastapi/utils/ocr_language.py

diff --git a/electron/app/ipc/setup_install_handlers.ts b/electron/app/ipc/setup_install_handlers.ts
index 7f840272..29ddb454 100644
--- a/electron/app/ipc/setup_install_handlers.ts
+++ b/electron/app/ipc/setup_install_handlers.ts
@@ -1,13 +1,14 @@
 /**
- * IPC handlers for the unified setup installer (LibreOffice + Chromium).
+ * IPC handlers for the unified setup installer (LibreOffice + Chromium + ImageMagick).
  * - setup:get-status — which dependencies are missing
  * - setup:install-chrome — download Chromium (browser-snapshots) with progress
  */
 
-import { ipcMain, WebContents } from "electron";
+import { ipcMain, WebContents, shell } from "electron";
 import fs from "fs";
 import path from "path";
 import os from "os";
+import { spawn, spawnSync } from "child_process";
 import puppeteer from "puppeteer";
 import {
   Browser,
@@ -17,6 +18,10 @@ import {
   resolveBuildId,
 } from "@puppeteer/browsers";
 import { getSetupStatus } from "../utils/setup-dependencies";
+import {
+  getImageMagickDownloadUrl,
+  isImageMagickInstalled,
+} from "../utils/imagemagick-check";
 
 function getPuppeteerCacheDir(): string {
   const configCache =
@@ -42,9 +47,78 @@ function sendChromeLog(wc: WebContents, level: string, text: string) {
   }
 }
 
+function sendImageMagickProgress(
+  wc: WebContents,
+  phase: "installing" | "done" | "error",
+  percent?: number,
+  message?: string
+) {
+  if (!wc.isDestroyed()) {
+    wc.send("setup:imagemagick-progress", { phase, percent, message });
+  }
+}
+
+function sendImageMagickLog(wc: WebContents, level: string, text: string) {
+  if (!wc.isDestroyed()) {
+    wc.send("setup:imagemagick-log", { level, text });
+  }
+}
+
+function commandExists(command: string, versionArgs: string[] = ["--version"]): boolean {
+  const result = spawnSync(command, versionArgs, {
+    stdio: "pipe",
+    windowsHide: true,
+  });
+  return result.status === 0;
+}
+
+function runInstallCommand(
+  wc: WebContents,
+  command: string,
+  args: string[]
+): Promise<void> {
+  sendImageMagickLog(wc, "info", `Running: ${command} ${args.join(" ")}`);
+  return new Promise((resolve, reject) => {
+    const child = spawn(command, args, {
+      stdio: ["ignore", "pipe", "pipe"],
+      windowsHide: process.platform === "win32",
+    });
+
+    child.stdout.on("data", (data) => {
+      const text = String(data).trim();
+      if (text) sendImageMagickLog(wc, "info", text);
+    });
+    child.stderr.on("data", (data) => {
+      const text = String(data).trim();
+      if (text) {
+        sendImageMagickLog(
+          wc,
+          text.toLowerCase().includes("error") ? "error" : "info",
+          text
+        );
+      }
+    });
+
+    child.on("error", reject);
+    child.on("close", (code) => {
+      if (code === 0) {
+        resolve();
+        return;
+      }
+      reject(new Error(`${command} exited with code ${code}`));
+    });
+  });
+}
+
 export function setupSetupInstallHandlers() {
   ipcMain.handle("setup:get-status", () => {
-    return getSetupStatus() ?? { needsLibreOffice: false, needsChrome: false };
+    return (
+      getSetupStatus() ?? {
+        needsLibreOffice: false,
+        needsChrome: false,
+        needsImageMagick: false,
+      }
+    );
   });
 
   ipcMain.handle(
@@ -121,4 +195,91 @@ export function setupSetupInstallHandlers() {
       return { ok: true };
     }
   );
+
+  ipcMain.handle(
+    "setup:install-imagemagick",
+    async (event): Promise<{ ok: boolean; error?: string }> => {
+      const wc = event.sender;
+      try {
+        sendImageMagickProgress(
+          wc,
+          "installing",
+          undefined,
+          "Installing ImageMagick..."
+        );
+
+        if (process.platform === "linux") {
+          if (commandExists("apt-get")) {
+            await runInstallCommand(wc, "pkexec", [
+              "apt-get",
+              "install",
+              "-y",
+              "imagemagick",
+            ]);
+          } else {
+            throw new Error(
+              "apt-get is unavailable. Install ImageMagick manually from the official download page."
+            );
+          }
+        } else if (process.platform === "darwin") {
+          if (commandExists("brew")) {
+            await runInstallCommand(wc, "brew", ["install", "imagemagick"]);
+          } else {
+            throw new Error(
+              "Homebrew is not installed. Install ImageMagick manually from the official download page."
+            );
+          }
+        } else if (process.platform === "win32") {
+          if (commandExists("choco", ["-v"])) {
+            await runInstallCommand(wc, "choco", [
+              "install",
+              "imagemagick.app",
+              "-y",
+            ]);
+          } else {
+            throw new Error(
+              "Chocolatey is not installed. Install ImageMagick manually from the official download page."
+            );
+          }
+        } else {
+          throw new Error(
+            "Unsupported platform for automatic install. Use manual install from the official download page."
+          );
+        }
+
+        sendImageMagickProgress(wc, "done", 100, "ImageMagick install finished");
+        return { ok: true };
+      } catch (error) {
+        const message =
+          error instanceof Error ? error.message : "ImageMagick install failed";
+        sendImageMagickLog(wc, "error", message);
+        const downloadUrl = getImageMagickDownloadUrl();
+        sendImageMagickLog(
+          wc,
+          "info",
+          `Falling back to manual install page: ${downloadUrl}`
+        );
+        await shell.openExternal(downloadUrl);
+        return { ok: true };
+      }
+    }
+  );
+
+  ipcMain.handle(
+    "setup:check-imagemagick",
+    async (event): Promise<{ ok: boolean; error?: string }> => {
+      const wc = event.sender;
+      const installed = isImageMagickInstalled();
+      if (installed) {
+        sendImageMagickProgress(wc, "done", 100, "ImageMagick detected");
+        sendImageMagickLog(wc, "ok", "ImageMagick is installed and ready.");
+        return { ok: true };
+      }
+      const message =
+        "ImageMagick is not detected yet. Install it, then click Retry.";
+      sendImageMagickProgress(wc, "error", undefined, message);
+      sendImageMagickLog(wc, "error", message);
+      return { ok: false, error: message };
+    }
+  );
 }
diff --git a/electron/app/main.ts b/electron/app/main.ts
index 0a526938..b478b7ca 100644
--- a/electron/app/main.ts
+++ b/electron/app/main.ts
@@ -13,6 +13,8 @@ import { setupSetupInstallHandlers } from "./ipc/setup_install_handlers";
 import { checkDependenciesBeforeWindow } from "./utils/setup-dependencies";
 import { getSofficePath, isLibreOfficeInstalled } from "./utils/libreoffice-check";
 import { getPuppeteerExecutablePath, isChromeInstalled } from "./utils/puppeteer-check";
+import { getLiteParseRunnerPath } from "./utils/liteparse-check";
+import { isImageMagickInstalled } from "./utils/imagemagick-check";
 import { startUpdateChecker, stopUpdateChecker } from "./utils/update-checker";
 
 
@@ -23,6 +25,7 @@ let isStopping = false;
 const startupStatus: Record<string, string> = {
   libreoffice: "checking",
   puppeteer: "checking",
+  imagemagick: "checking",
 };
 
 // Allow renderer to query initial startup status as soon as it loads.
@@ -122,6 +125,7 @@ async function startServers(fastApiPort: number, nextjsPort: number) {
         // Resolved by libreoffice-check.ts at startup; lets Python invoke the
         // exact binary path instead of relying on the system PATH.
         SOFFICE_PATH: getSofficePath(),
+        LITEPARSE_RUNNER_PATH: getLiteParseRunnerPath(),
       },
       isDev,
     );
@@ -188,7 +192,7 @@ app.whenReady().then(async () => {
   createWindow();
   win?.loadFile(path.join(baseDir, "resources/ui/homepage/index.html"));
 
-  // Single installer: checks LibreOffice and Chrome; if either is missing, shows one
+  // Single installer: checks LibreOffice, Chrome, and ImageMagick; if any are missing, shows one
   // window that installs them one after another. Resolves when the window closes.
   const setupCompleted = await checkDependenciesBeforeWindow();
   if (!setupCompleted) {
@@ -199,12 +203,14 @@ app.whenReady().then(async () => {
   }
 
   // Update startup status after setup (user may have installed one or both)
-  const [loResult, chromeOk] = await Promise.all([
+  const [loResult, chromeOk, imageMagickOk] = await Promise.all([
     isLibreOfficeInstalled(),
     isChromeInstalled(),
+    Promise.resolve(isImageMagickInstalled()),
   ]);
   startupStatus.libreoffice = loResult.installed ? "installed" : "missing";
   startupStatus.puppeteer = chromeOk ? "installed" : "missing";
+  startupStatus.imagemagick = imageMagickOk ? "installed" : "missing";
 
   // Show and focus main window
   win?.show();
@@ -218,6 +224,7 @@ app.whenReady().then(async () => {
   win?.webContents.once("did-finish-load", () => {
     sendStartupStatus("libreoffice", startupStatus.libreoffice);
     sendStartupStatus("puppeteer", startupStatus.puppeteer);
+    sendStartupStatus("imagemagick", startupStatus.imagemagick);
   });
 
   setUserConfig({
diff --git a/electron/app/preloads/setup-installer.ts b/electron/app/preloads/setup-installer.ts
index 57c30dc6..3b887a3f 100644
--- a/electron/app/preloads/setup-installer.ts
+++ b/electron/app/preloads/setup-installer.ts
@@ -5,6 +5,8 @@ contextBridge.exposeInMainWorld("setupInstaller", {
 
   installLibreOffice: () => ipcRenderer.invoke("lo:start-install"),
   installChrome: () => ipcRenderer.invoke("setup:install-chrome"),
+  installImageMagick: () => ipcRenderer.invoke("setup:install-imagemagick"),
+  checkImageMagick: () => ipcRenderer.invoke("setup:check-imagemagick"),
 
   done: () => ipcRenderer.send("setup:done"),
 
@@ -25,4 +27,13 @@ contextBridge.exposeInMainWorld("setupInstaller", {
   onChromeLog: (cb: (data: { level: string; text: string }) => void) => {
     ipcRenderer.on("setup:chrome-log", (_event, data) => cb(data));
   },
+
+  onImageMagickProgress: (
+    cb: (data: { phase: string; percent?: number; message?: string }) => void
+  ) => {
+    ipcRenderer.on("setup:imagemagick-progress", (_event, data) => cb(data));
+  },
+  onImageMagickLog: (cb: (data: { level: string; text: string }) => void) => {
+    ipcRenderer.on("setup:imagemagick-log", (_event, data) => cb(data));
+  },
 });
diff --git a/electron/app/types/index.d.ts b/electron/app/types/index.d.ts
index e82c05b1..10807ecf 100644
--- a/electron/app/types/index.d.ts
+++ b/electron/app/types/index.d.ts
@@ -33,6 +33,8 @@ interface FastApiEnv {
   MIGRATE_DATABASE_ON_STARTUP?: string,
   /** Absolute path to the soffice binary resolved at startup by libreoffice-check.ts. */
   SOFFICE_PATH?: string,
+  /** Absolute path to the bundled LiteParse runner script. */
+  LITEPARSE_RUNNER_PATH?: string,
 }
 
 interface NextJsEnv {
diff --git a/electron/app/utils/imagemagick-check.ts b/electron/app/utils/imagemagick-check.ts
new file mode 100644
index 00000000..6495c7f8
--- /dev/null
+++ b/electron/app/utils/imagemagick-check.ts
@@ -0,0 +1,27 @@
+import { spawnSync } from "child_process";
+
+function canExecute(command: string, args: string[]): boolean {
+  const result = spawnSync(command, args, {
+    stdio: "pipe",
+    windowsHide: true,
+  });
+  return result.status === 0;
+}
+
+export function isImageMagickInstalled(): boolean {
+  // ImageMagick 7+ command
+  if (canExecute("magick", ["-version"])) return true;
+  // Legacy command on Linux/macOS packages
+  if (canExecute("convert", ["-version"])) return true;
+  return false;
+}
+
+export function getImageMagickDownloadUrl(): string {
+  if (process.platform === "win32") {
+    return "https://imagemagick.org/script/download.php#windows";
+  }
+  if (process.platform === "darwin") {
+    return "https://imagemagick.org/script/download.php#macosx";
+  }
+  return "https://imagemagick.org/script/download.php#linux";
+}
diff --git a/electron/app/utils/liteparse-check.ts b/electron/app/utils/liteparse-check.ts
new file mode 100644
index 00000000..8384dd9c
--- /dev/null
+++ b/electron/app/utils/liteparse-check.ts
@@ -0,0 +1,28 @@
+import fs from "fs";
+import path from "path";
+import { spawnSync } from "child_process";
+import { baseDir, isDev } from "./constants";
+
+export function getLiteParseRunnerPath(): string {
+  return isDev
+    ? path.join(baseDir, "resources", "document-extraction", "liteparse_runner.mjs")
+    : path.join(baseDir, "resources", "document-extraction", "liteparse_runner.mjs");
+}
+
+export function getLiteParseDependencyPath(): string {
+  return path.join(baseDir, "node_modules", "@llamaindex", "liteparse");
+}
+
+export function isLiteParseInstalled(): boolean {
+  const runnerPath = getLiteParseRunnerPath();
+  const liteparsePackagePath = getLiteParseDependencyPath();
+
+  if (!fs.existsSync(runnerPath)) return false;
+  if (!fs.existsSync(liteparsePackagePath)) return false;
+
+  const nodeCheck = spawnSync("node", ["--version"], {
+    stdio: "pipe",
+    windowsHide: true,
+  });
+  return nodeCheck.status === 0;
+}
diff --git a/electron/app/utils/puppeteer-check.ts b/electron/app/utils/puppeteer-check.ts
index cabdd296..3664f90d 100644
--- a/electron/app/utils/puppeteer-check.ts
+++ b/electron/app/utils/puppeteer-check.ts
@@ -29,6 +29,7 @@ function shouldSkipDownload(): boolean {
 export interface SetupStatus {
   needsLibreOffice: boolean;
   needsChrome: boolean;
+  needsImageMagick: boolean;
 }
 
 /**
diff --git a/electron/app/utils/setup-dependencies.ts b/electron/app/utils/setup-dependencies.ts
index 5f99f13b..f014c095 100644
--- a/electron/app/utils/setup-dependencies.ts
+++ b/electron/app/utils/setup-dependencies.ts
@@ -1,9 +1,10 @@
 /**
  * setup-dependencies.ts
  *
- * Single installer window that ensures LibreOffice and Chrome (Puppeteer) are
+ * Single installer window that ensures LibreOffice, Chrome (Puppeteer), and
+ * ImageMagick are
  * available before the user starts creating presentations. Runs checks, then
- * if either is missing shows one installer that runs LibreOffice then Chrome
+ * if any are missing shows one installer that runs dependency setup steps
  * in sequence (each with Install / Skip).
  */
 
@@ -15,6 +16,7 @@ import {
   isChromeInstalled,
   type SetupStatus,
 } from "./puppeteer-check";
+import { isImageMagickInstalled } from "./imagemagick-check";
 
 export type { SetupStatus };
 
@@ -26,40 +28,44 @@ export function getSetupStatus(): SetupStatus | null {
 }
 
 /**
- * Checks LibreOffice and Chrome. If both are present, returns immediately.
- * If either is missing, opens one installer window that runs LibreOffice
- * then Chrome in sequence. Returns true only when all required dependencies
+ * Checks LibreOffice, Chrome and ImageMagick. If all are present, returns
+ * immediately. If any are missing, opens one installer window that runs each
+ * missing setup step in sequence. Returns true only when all required dependencies
  * are installed; false when the installer is closed/skipped before completion.
  */
 export async function checkDependenciesBeforeWindow(): Promise<boolean> {
-  const [loResult, chromeInstalled] = await Promise.all([
+  const [loResult, chromeInstalled, imageMagickInstalled] = await Promise.all([
     isLibreOfficeInstalled(),
     isChromeInstalled(),
+    Promise.resolve(isImageMagickInstalled()),
   ]);
 
   const needsLibreOffice = !loResult.installed;
   const needsChrome = !chromeInstalled;
+  const needsImageMagick = !imageMagickInstalled;
 
-  if (!needsLibreOffice && !needsChrome) {
+  if (!needsLibreOffice && !needsChrome && !needsImageMagick) {
     return true;
   }
 
   currentSetupStatus = {
     needsLibreOffice,
     needsChrome,
+    needsImageMagick,
   };
 
   await showSetupInstallerWindow();
 
   // Re-check after installer closes; setup can only proceed when all
   // required dependencies are actually installed.
-  const [postLoResult, postChromeInstalled] = await Promise.all([
+  const [postLoResult, postChromeInstalled, postImageMagickInstalled] = await Promise.all([
     isLibreOfficeInstalled(),
     isChromeInstalled(),
+    Promise.resolve(isImageMagickInstalled()),
   ]);
 
   currentSetupStatus = null;
-  return postLoResult.installed && postChromeInstalled;
+  return postLoResult.installed && postChromeInstalled && postImageMagickInstalled;
 }
 
 /**
diff --git a/electron/package-lock.json b/electron/package-lock.json
index 06313aa0..61d3b1b2 100644
--- a/electron/package-lock.json
+++ b/electron/package-lock.json
@@ -9,6 +9,7 @@
       "version": "0.6.3-beta",
       "hasInstallScript": true,
       "dependencies": {
+        "@llamaindex/liteparse": "^1.4.0",
         "@puppeteer/browsers": "^1.9.1",
         "@tailwindcss/cli": "^4.1.5",
         "@types/uuid": "^10.0.0",
@@ -54,6 +55,16 @@
         "node": ">=6.9.0"
       }
     },
+    "node_modules/@borewit/text-codec": {
+      "version": "0.2.2",
+      "resolved": "https://registry.npmjs.org/@borewit/text-codec/-/text-codec-0.2.2.tgz",
+      "integrity": "sha512-DDaRehssg1aNrH4+2hnj1B7vnUGEjU6OIlyRdkMd0aUdIUvKXrJfXsy8LVtXAy7DRvYVluWbMspsRhz2lcW0mQ==",
+      "license": "MIT",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Borewit"
+      }
+    },
     "node_modules/@develar/schema-utils": {
       "version": "2.6.5",
       "resolved": "https://registry.npmjs.org/@develar/schema-utils/-/schema-utils-2.6.5.tgz",
@@ -507,6 +518,12 @@
         "tslib": "^2.4.0"
       }
     },
+    "node_modules/@hyzyla/pdfium": {
+      "version": "2.1.12",
+      "resolved": "https://registry.npmjs.org/@hyzyla/pdfium/-/pdfium-2.1.12.tgz",
+      "integrity": "sha512-2ezbrJk9V4foB3+U+eQ7234spsHmrufPU+9EV2cVZCnhTLLfelPz7wWshO0HjUNtcECNBaAfEzrdaQZOigkW+A==",
+      "license": "MIT"
+    },
     "node_modules/@img/colour": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/@img/colour/-/colour-1.0.0.tgz",
@@ -1156,6 +1173,67 @@
         "@jridgewell/sourcemap-codec": "^1.4.14"
       }
     },
+    "node_modules/@llamaindex/liteparse": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/@llamaindex/liteparse/-/liteparse-1.4.0.tgz",
+      "integrity": "sha512-58Tr4vAutcaf0Cxe7GK4cknpzcpN3tTzUhIAwWioWuSDqVPS3jpNhVVfqE5tV5PE4za07l07QFhGscCoVm/hRw==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@hyzyla/pdfium": "^2.1.9",
+        "axios": "^1.7.0",
+        "commander": "^12.0.0",
+        "file-type": "^21.3.3",
+        "form-data": "^4.0.0",
+        "p-limit": "^7.3.0",
+        "sharp": "^0.34.5",
+        "tesseract.js": "^7.0.0",
+        "unified": "^11.0.0",
+        "zod": "^3.23.0"
+      },
+      "bin": {
+        "lit": "dist/src/index.js",
+        "liteparse": "dist/src/index.js"
+      },
+      "engines": {
+        "node": ">=18.0.0"
+      }
+    },
+    "node_modules/@llamaindex/liteparse/node_modules/commander": {
+      "version": "12.1.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-12.1.0.tgz",
+      "integrity": "sha512-Vw8qHK3bZM9y/P10u3Vib8o/DdkvA2OtPtZvD871QKjy74Wj1WSKFILMPRPSdUSx5RFK1arlJzEtA4PkFgnbuA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@llamaindex/liteparse/node_modules/p-limit": {
+      "version": "7.3.0",
+      "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-7.3.0.tgz",
+      "integrity": "sha512-7cIXg/Z0M5WZRblrsOla88S4wAK+zOQQWeBYfV3qJuJXMr+LnbYjaadrFaS0JILfEDPVqHyKnZ1Z/1d6J9VVUw==",
+      "license": "MIT",
+      "dependencies": {
+        "yocto-queue": "^1.2.1"
+      },
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       "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">= 0.6"
@@ -5166,7 +5379,6 @@
       "version": "2.1.35",
       "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
       "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "mime-db": "1.52.0"
@@ -5467,6 +5679,26 @@
         "node": ">=10"
       }
     },
+    "node_modules/node-fetch": {
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.7.0.tgz",
+      "integrity": "sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==",
+      "license": "MIT",
+      "dependencies": {
+        "whatwg-url": "^5.0.0"
+      },
+      "engines": {
+        "node": "4.x || >=6.0.0"
+      },
+      "peerDependencies": {
+        "encoding": "^0.1.0"
+      },
+      "peerDependenciesMeta": {
+        "encoding": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/node-gyp": {
       "version": "11.5.0",
       "resolved": "https://registry.npmjs.org/node-gyp/-/node-gyp-11.5.0.tgz",
@@ -5607,6 +5839,15 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/opencollective-postinstall": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/opencollective-postinstall/-/opencollective-postinstall-2.0.3.tgz",
+      "integrity": "sha512-8AV/sCtuzUeTo8gQK5qDZzARrulB3egtLzFgteqB2tcT4Mw7B8Kt7JcDHmltjz6FOAHsvTevk70gZEbhM4ZS9Q==",
+      "license": "MIT",
+      "bin": {
+        "opencollective-postinstall": "index.js"
+      }
+    },
     "node_modules/ora": {
       "version": "5.4.1",
       "resolved": "https://registry.npmjs.org/ora/-/ora-5.4.1.tgz",
@@ -6205,6 +6446,12 @@
         "node": ">= 6"
       }
     },
+    "node_modules/regenerator-runtime": {
+      "version": "0.13.11",
+      "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.11.tgz",
+      "integrity": "sha512-kY1AZVr2Ra+t+piVaJ4gxaFaReZVH40AKNo7UCX6W+dEwBo/2oZJzqfuN1qLq1oL45o56cPaTXELwrTh8Fpggg==",
+      "license": "MIT"
+    },
     "node_modules/require-directory": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
@@ -6344,7 +6591,7 @@
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT"
     },
     "node_modules/sanitize-filename": {
@@ -6754,6 +7001,22 @@
         "node": ">=8"
       }
     },
+    "node_modules/strtok3": {
+      "version": "10.3.5",
+      "resolved": "https://registry.npmjs.org/strtok3/-/strtok3-10.3.5.tgz",
+      "integrity": "sha512-ki4hZQfh5rX0QDLLkOCj+h+CVNkqmp/CMf8v8kZpkNVK6jGQooMytqzLZYUVYIZcFZ6yDB70EfD8POcFXiF5oA==",
+      "license": "MIT",
+      "dependencies": {
+        "@tokenizer/token": "^0.3.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Borewit"
+      }
+    },
     "node_modules/sumchecker": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/sumchecker/-/sumchecker-3.0.1.tgz",
@@ -6991,6 +7254,30 @@
         "mkdirp": "bin/cmd.js"
       }
     },
+    "node_modules/tesseract.js": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/tesseract.js/-/tesseract.js-7.0.0.tgz",
+      "integrity": "sha512-exPBkd+z+wM1BuMkx/Bjv43OeLBxhL5kKWsz/9JY+DXcXdiBjiAch0V49QR3oAJqCaL5qURE0vx9Eo+G5YE7mA==",
+      "hasInstallScript": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "bmp-js": "^0.1.0",
+        "idb-keyval": "^6.2.0",
+        "is-url": "^1.2.4",
+        "node-fetch": "^2.6.9",
+        "opencollective-postinstall": "^2.0.3",
+        "regenerator-runtime": "^0.13.3",
+        "tesseract.js-core": "^7.0.0",
+        "wasm-feature-detect": "^1.8.0",
+        "zlibjs": "^0.3.1"
+      }
+    },
+    "node_modules/tesseract.js-core": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/tesseract.js-core/-/tesseract.js-core-7.0.0.tgz",
+      "integrity": "sha512-WnNH518NzmbSq9zgTPeoF8c+xmilS8rFIl1YKbk/ptuuc7p6cLNELNuPAzcmsYw450ca6bLa8j3t0VAtq435Vw==",
+      "license": "Apache-2.0"
+    },
     "node_modules/text-decoder": {
       "version": "1.2.7",
       "resolved": "https://registry.npmjs.org/text-decoder/-/text-decoder-1.2.7.tgz",
@@ -7063,6 +7350,30 @@
         "tmp": "^0.2.0"
       }
     },
+    "node_modules/token-types": {
+      "version": "6.1.2",
+      "resolved": "https://registry.npmjs.org/token-types/-/token-types-6.1.2.tgz",
+      "integrity": "sha512-dRXchy+C0IgK8WPC6xvCHFRIWYUbqqdEIKPaKo/AcTUNzwLTK6AH7RjdLWsEZcAN/TBdtfUw3PYEgPr5VPr6ww==",
+      "license": "MIT",
+      "dependencies": {
+        "@borewit/text-codec": "^0.2.1",
+        "@tokenizer/token": "^0.3.0",
+        "ieee754": "^1.2.1"
+      },
+      "engines": {
+        "node": ">=14.16"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/Borewit"
+      }
+    },
+    "node_modules/tr46": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+      "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==",
+      "license": "MIT"
+    },
     "node_modules/tree-kill": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/tree-kill/-/tree-kill-1.2.2.tgz",
@@ -7072,6 +7383,16 @@
         "tree-kill": "cli.js"
       }
     },
+    "node_modules/trough": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/trough/-/trough-2.2.0.tgz",
+      "integrity": "sha512-tmMpK00BjZiUyVyvrBK7knerNgmgvcV/KLVyuma/SC+TQN167GrMRciANTz09+k3zW8L8t60jWO1GpfkZdjTaw==",
+      "license": "MIT",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/wooorm"
+      }
+    },
     "node_modules/truncate-utf8-bytes": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/truncate-utf8-bytes/-/truncate-utf8-bytes-1.0.2.tgz",
@@ -7122,6 +7443,18 @@
         "node": ">=14.17"
       }
     },
+    "node_modules/uint8array-extras": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/uint8array-extras/-/uint8array-extras-1.5.0.tgz",
+      "integrity": "sha512-rvKSBiC5zqCCiDZ9kAOszZcDvdAHwwIKJG33Ykj43OKcWsnmcBRL09YTU4nOeHZ8Y2a7l1MgTd08SBe9A8Qj6A==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/unbzip2-stream": {
       "version": "1.4.3",
       "resolved": "https://registry.npmjs.org/unbzip2-stream/-/unbzip2-stream-1.4.3.tgz",
@@ -7139,6 +7472,25 @@
       "devOptional": true,
       "license": "MIT"
     },
+    "node_modules/unified": {
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/unified/-/unified-11.0.5.tgz",
+      "integrity": "sha512-xKvGhPWw3k84Qjh8bI3ZeJjqnyadK+GEFtazSfZv/rKeTkTjOJho6mFqh2SM96iIcZokxiOpg78GazTSg8+KHA==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/unist": "^3.0.0",
+        "bail": "^2.0.0",
+        "devlop": "^1.0.0",
+        "extend": "^3.0.0",
+        "is-plain-obj": "^4.0.0",
+        "trough": "^2.0.0",
+        "vfile": "^6.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
     "node_modules/unique-filename": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/unique-filename/-/unique-filename-4.0.0.tgz",
@@ -7165,6 +7517,19 @@
         "node": "^18.17.0 || >=20.5.0"
       }
     },
+    "node_modules/unist-util-stringify-position": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/unist-util-stringify-position/-/unist-util-stringify-position-4.0.0.tgz",
+      "integrity": "sha512-0ASV06AAoKCDkS2+xw5RXJywruurpbC4JZSm7nr7MOt1ojAzvyyaO+UxZf18j8FCF6kmzCZKcAgN/yu2gm2XgQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/unist": "^3.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
     "node_modules/universalify": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
@@ -7228,6 +7593,40 @@
         "node": ">=0.6.0"
       }
     },
+    "node_modules/vfile": {
+      "version": "6.0.3",
+      "resolved": "https://registry.npmjs.org/vfile/-/vfile-6.0.3.tgz",
+      "integrity": "sha512-KzIbH/9tXat2u30jf+smMwFCsno4wHVdNmzFyL+T/L3UGqqk6JKfVqOFOZEpZSHADH1k40ab6NUIXZq422ov3Q==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/unist": "^3.0.0",
+        "vfile-message": "^4.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
+    "node_modules/vfile-message": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/vfile-message/-/vfile-message-4.0.3.tgz",
+      "integrity": "sha512-QTHzsGd1EhbZs4AsQ20JX1rC3cOlt/IWJruk893DfLRr57lcnOeMaWG4K0JrRta4mIJZKth2Au3mM3u03/JWKw==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/unist": "^3.0.0",
+        "unist-util-stringify-position": "^4.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
+    "node_modules/wasm-feature-detect": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/wasm-feature-detect/-/wasm-feature-detect-1.8.0.tgz",
+      "integrity": "sha512-zksaLKM2fVlnB5jQQDqKXXwYHLQUVH9es+5TOOHwGOVJOCeRBCiPjwSg+3tN2AdTCzjgli4jijCH290kXb/zWQ==",
+      "license": "Apache-2.0"
+    },
     "node_modules/wcwidth": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/wcwidth/-/wcwidth-1.0.1.tgz",
@@ -7244,6 +7643,22 @@
       "integrity": "sha512-ARrjNjtWRRs2w4Tk7nqrf2gBI0QXWuOmMCx2hU+1jUt6d00MjMxURrhxhGbrsoiZKJrhTSTzbIrc554iKI10qw==",
       "license": "Apache-2.0"
     },
+    "node_modules/webidl-conversions": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+      "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==",
+      "license": "BSD-2-Clause"
+    },
+    "node_modules/whatwg-url": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
+      "integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==",
+      "license": "MIT",
+      "dependencies": {
+        "tr46": "~0.0.3",
+        "webidl-conversions": "^3.0.0"
+      }
+    },
     "node_modules/which": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/which/-/which-5.0.0.tgz",
@@ -7399,6 +7814,15 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/zlibjs": {
+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/zlibjs/-/zlibjs-0.3.1.tgz",
+      "integrity": "sha512-+J9RrgTKOmlxFSDHo0pI1xM6BLVUv+o0ZT9ANtCxGkjIVCCUdx9alUF8Gm+dGLKbkkkidWIHFDZHDMpfITt4+w==",
+      "license": "MIT",
+      "engines": {
+        "node": "*"
+      }
+    },
     "node_modules/zod": {
       "version": "3.25.76",
       "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
diff --git a/electron/package.json b/electron/package.json
index 10dd69d2..ecbf96c8 100644
--- a/electron/package.json
+++ b/electron/package.json
@@ -26,10 +26,10 @@
     "automation"
   ],
   "scripts": {
-    "start": "electron .",
+    "start": "electron . --no-sandbox",
     "dist": "electron-builder",
     "postinstall": "electron-builder install-app-deps",
-    "dev": "rm -rf app_dist && tsc && electron .",
+    "dev": "rm -rf app_dist && tsc && electron . --no-sandbox",
     "setup:env": "npm install && cd servers/fastapi && uv sync && cd ../../servers/nextjs && npm install && cd ../.. && npm run setup:export-runtime",
     "install:pyinstaller": "cd servers/fastapi && echo 'pyinstaller already in dependencies'",
     "build:ts": "rm -rf app_dist && tsc",
@@ -51,6 +51,7 @@
     "email": "suraj@presenton.ai"
   },
   "dependencies": {
+    "@llamaindex/liteparse": "^1.4.0",
     "@puppeteer/browsers": "^1.9.1",
     "@tailwindcss/cli": "^4.1.5",
     "@types/uuid": "^10.0.0",
diff --git a/electron/resources/document-extraction/liteparse_runner.mjs b/electron/resources/document-extraction/liteparse_runner.mjs
new file mode 100644
index 00000000..d8250744
--- /dev/null
+++ b/electron/resources/document-extraction/liteparse_runner.mjs
@@ -0,0 +1,147 @@
+#!/usr/bin/env node
+/**
+ * CLI bridge for Python: one JSON line on stdout for LiteParse extraction.
+ *
+ * OCR follows LlamaIndex LiteParse guidance (built-in Tesseract by default):
+ * https://developers.llamaindex.ai/liteparse/guides/ocr/
+ *
+ * - ISO 639-3 for Tesseract (eng, fra, deu, jpn, …); multi-lang as "deu+eng" or "deu,eng".
+ * - Parallel workers ≈ CPU cores − 1 (override --num-workers).
+ * - Optional HTTP OCR: --ocr-server-url or LITEPARSE_OCR_SERVER_URL.
+ * - Optional local models: --tessdata-path or LITEPARSE_TESSDATA_PATH (else TESSDATA_PREFIX / CDN).
+ */
+
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { LiteParse } from "@llamaindex/liteparse";
+
+function readArg(name) {
+  const idx = process.argv.indexOf(name);
+  if (idx === -1) return null;
+  return process.argv[idx + 1] ?? null;
+}
+
+function parseBool(value, fallback) {
+  if (value == null || value === "") return fallback;
+  const s = String(value).trim().toLowerCase();
+  if (["1", "true", "yes", "on"].includes(s)) return true;
+  if (["0", "false", "no", "off"].includes(s)) return false;
+  return fallback;
+}
+
+function toNumber(value, fallback, min, max) {
+  if (value == null || value === "") return fallback;
+  const parsed = Number(value);
+  if (Number.isNaN(parsed)) return fallback;
+  return Math.min(Math.max(parsed, min), max);
+}
+
+/** Tesseract accepts "deu+eng"; allow comma-separated CLI/env for convenience. */
+function normalizeOcrLanguage(raw) {
+  const s = String(raw ?? "").trim();
+  if (!s) return "eng";
+  if (s.includes(",")) {
+    return s
+      .split(",")
+      .map((p) => p.trim())
+      .filter(Boolean)
+      .join("+");
+  }
+  return s;
+}
+
+function emit(result, exitCode = 0) {
+  process.stdout.write(`${JSON.stringify(result)}\n`);
+  process.exit(exitCode);
+}
+
+const filePath = readArg("--file");
+if (!filePath) {
+  emit({ ok: false, error: "Missing required --file argument" }, 2);
+}
+
+const resolvedPath = path.resolve(filePath);
+if (!fs.existsSync(resolvedPath)) {
+  emit({ ok: false, error: `File not found: ${resolvedPath}` }, 2);
+}
+
+const ocrEnabled = parseBool(readArg("--ocr-enabled"), true);
+const dpi = toNumber(readArg("--dpi"), 150, 72, 600);
+const numWorkers = toNumber(
+  readArg("--num-workers"),
+  Math.max(os.cpus().length - 1, 1),
+  1,
+  64
+);
+
+const cliOcrLanguage = readArg("--ocr-language");
+const ocrLanguageRaw =
+  (process.env.LITEPARSE_OCR_LANGUAGE && String(process.env.LITEPARSE_OCR_LANGUAGE).trim()) ||
+  (cliOcrLanguage && String(cliOcrLanguage).trim()) ||
+  "";
+const ocrLanguage = normalizeOcrLanguage(ocrLanguageRaw || "eng");
+
+const outputFormatRaw = (readArg("--output-format") || "text").trim().toLowerCase();
+const outputFormat = outputFormatRaw === "json" ? "json" : "text";
+
+const ocrServerUrlArg = readArg("--ocr-server-url");
+const ocrServerUrl =
+  (ocrServerUrlArg && String(ocrServerUrlArg).trim()) ||
+  (process.env.LITEPARSE_OCR_SERVER_URL && String(process.env.LITEPARSE_OCR_SERVER_URL).trim()) ||
+  undefined;
+
+const tessdataArg = readArg("--tessdata-path");
+const tessdataPath =
+  (tessdataArg && String(tessdataArg).trim()) ||
+  (process.env.LITEPARSE_TESSDATA_PATH && String(process.env.LITEPARSE_TESSDATA_PATH).trim()) ||
+  (process.env.TESSDATA_PREFIX && String(process.env.TESSDATA_PREFIX).trim()) ||
+  undefined;
+
+try {
+  const config = {
+    ocrEnabled,
+    ocrLanguage,
+    outputFormat,
+    dpi,
+    numWorkers,
+  };
+  if (ocrServerUrl) {
+    config.ocrServerUrl = ocrServerUrl;
+  }
+  if (tessdataPath) {
+    config.tessdataPath = tessdataPath;
+  }
+
+  const parser = new LiteParse(config);
+
+  const result = await parser.parse(resolvedPath, true);
+  const text = result?.text ?? "";
+  emit({
+    ok: true,
+    filePath: resolvedPath,
+    text,
+    pageCount: Array.isArray(result?.pages) ? result.pages.length : 0,
+    ocr: {
+      engine: ocrServerUrl ? "http" : "tesseract",
+      ocrLanguage,
+      ocrEnabled,
+      dpi,
+      numWorkers,
+    },
+  });
+} catch (error) {
+  const message = error instanceof Error ? error.message : String(error);
+  const stack = error instanceof Error ? error.stack : undefined;
+  if (stack) {
+    process.stderr.write(`${stack}\n`);
+  }
+  emit(
+    {
+      ok: false,
+      filePath: resolvedPath,
+      error: message,
+    },
+    1
+  );
+}
diff --git a/electron/resources/document-extraction/package.json b/electron/resources/document-extraction/package.json
new file mode 100644
index 00000000..89e4c182
--- /dev/null
+++ b/electron/resources/document-extraction/package.json
@@ -0,0 +1,8 @@
+{
+  "name": "presenton-document-extraction",
+  "private": true,
+  "type": "module",
+  "dependencies": {
+    "@llamaindex/liteparse": "^1.4.0"
+  }
+}
diff --git a/electron/resources/ui/homepage/script.js b/electron/resources/ui/homepage/script.js
index 04ba9044..a047db7e 100644
--- a/electron/resources/ui/homepage/script.js
+++ b/electron/resources/ui/homepage/script.js
@@ -12,6 +12,7 @@ window.addEventListener("DOMContentLoaded", () => {
   const labelMap = {
     libreoffice: "LibreOffice",
     puppeteer: "Chromium",
+    imagemagick: "ImageMagick",
   };
 
   const dependenciesEl = document.getElementById("status-dependencies");
@@ -24,6 +25,7 @@ window.addEventListener("DOMContentLoaded", () => {
   const currentStatus = {
     libreoffice: "checking",
     puppeteer: "checking",
+    imagemagick: "checking",
   };
 
   function setStatus(name, status) {
@@ -83,6 +85,7 @@ window.addEventListener("DOMContentLoaded", () => {
       if (!statusMap) return;
       if (statusMap.libreoffice) setStatus("libreoffice", statusMap.libreoffice);
       if (statusMap.puppeteer) setStatus("puppeteer", statusMap.puppeteer);
+      if (statusMap.imagemagick) setStatus("imagemagick", statusMap.imagemagick);
     });
   }
 });
\ No newline at end of file
diff --git a/electron/resources/ui/setup-installer/index.html b/electron/resources/ui/setup-installer/index.html
index 156311cb..5ff1397b 100644
--- a/electron/resources/ui/setup-installer/index.html
+++ b/electron/resources/ui/setup-installer/index.html
@@ -141,7 +141,7 @@
       <div id="state-prompt" class="state active">
         <div class="icon-wrap purple">📦</div>
         <p class="heading" id="prompt-heading">Dependencies required</p>
-        <p class="sub" id="prompt-sub">Presenton needs LibreOffice and Chrome to create and export presentations. Install them now so everything works.</p>
+        <p class="sub" id="prompt-sub">Presenton needs LibreOffice, Chrome, and ImageMagick to create and export presentations reliably. Install them now so everything works.</p>
         <div class="btn-row">
           <button class="btn-primary" id="btn-install">Install</button>
           <button class="btn-ghost" id="btn-skip">Skip for now</button>
@@ -212,8 +212,9 @@
   <script>
     const STATES = ['prompt','downloading','installing','success','error'];
     let logLines = 0;
-    let currentStep = null; // 'libreoffice' | 'chrome'
-    let status = { needsLibreOffice: false, needsChrome: false };
+    let currentStep = null; // 'libreoffice' | 'chrome' | 'imagemagick'
+    let status = { needsLibreOffice: false, needsChrome: false, needsImageMagick: false };
+    let steps = [];
     let logOpen = false;
 
     function showState(name) {
@@ -264,15 +265,30 @@
       document.getElementById('log-toggle-label').textContent = logOpen ? 'Hide details' : 'Show details';
     }
 
+    function getStepsFromStatus() {
+      const queue = [];
+      if (status.needsLibreOffice) queue.push('libreoffice');
+      if (status.needsChrome) queue.push('chrome');
+      if (status.needsImageMagick) queue.push('imagemagick');
+      return queue;
+    }
+
     function showPromptForStep(step) {
       currentStep = step;
-      const total = (status.needsLibreOffice ? 1 : 0) + (status.needsChrome ? 1 : 0);
-      const stepNum = step === 'libreoffice' ? 1 : 2;
-      setStepBadge(stepNum, total, step === 'libreoffice' ? 'LibreOffice' : 'Chromium');
-      document.getElementById('prompt-heading').textContent = step === 'libreoffice' ? 'LibreOffice required' : 'Chromium required';
-      document.getElementById('prompt-sub').innerHTML = step === 'libreoffice'
-        ? '<strong>Presenton</strong> uses LibreOffice to generate custom templates from PPTX files.'
-        : '<strong>Presenton</strong> uses Chromium for export and slide rendering. Download it now (~150 MB).';
+      const total = steps.length || 1;
+      const stepNum = Math.max(1, steps.indexOf(step) + 1);
+      const stepLabel = step === 'libreoffice' ? 'LibreOffice' : step === 'chrome' ? 'Chromium' : 'ImageMagick';
+      setStepBadge(stepNum, total, stepLabel);
+      document.getElementById('prompt-heading').textContent =
+        step === 'libreoffice' ? 'LibreOffice required' :
+        step === 'chrome' ? 'Chromium required' :
+        'ImageMagick required';
+      document.getElementById('prompt-sub').innerHTML =
+        step === 'libreoffice'
+          ? '<strong>Presenton</strong> uses LibreOffice to generate custom templates from PPTX files.'
+          : step === 'chrome'
+          ? '<strong>Presenton</strong> uses Chromium for export and slide rendering. Download it now (~150 MB).'
+          : '<strong>Presenton</strong> uses ImageMagick for OCR/document conversion support. We will try automatic installation first, then open the download page if package manager tools are unavailable.';
       document.getElementById('btn-install').onclick = () => startInstall(step);
       document.getElementById('btn-skip').onclick = () => handleSkip();
       showState('prompt');
@@ -286,7 +302,7 @@
         document.getElementById('dl-heading').textContent = 'Downloading LibreOffice';
         document.getElementById('dl-phase').textContent = 'This may take a few minutes (~300 MB)';
         window.setupInstaller.installLibreOffice();
-      } else {
+      } else if (step === 'chrome') {
         document.getElementById('dl-heading').textContent = 'Downloading Chromium';
         document.getElementById('dl-phase').textContent = 'This may take a few minutes (~150 MB)';
         window.setupInstaller.installChrome().then(res => {
@@ -297,12 +313,27 @@
             document.getElementById('btn-skip-error').onclick = () => nextOrDone();
           }
         });
+      } else {
+        document.getElementById('dl-heading').textContent = 'Installing ImageMagick';
+        document.getElementById('dl-phase').textContent = 'Automatic install (apt/brew/choco) with fallback to manual download';
+        window.setupInstaller.installImageMagick().then(() => {
+          window.setupInstaller.checkImageMagick().then(res => {
+            if (!res.ok && currentStep === 'imagemagick') {
+              document.getElementById('err-msg').textContent = res.error || 'ImageMagick is not installed yet.';
+              showState('error');
+              document.getElementById('btn-retry').onclick = () => startInstall('imagemagick');
+              document.getElementById('btn-skip-error').onclick = () => nextOrDone();
+            }
+          });
+        });
       }
     }
 
     function nextOrDone() {
-      if (currentStep === 'libreoffice' && status.needsChrome) {
-        showPromptForStep('chrome');
+      const idx = steps.indexOf(currentStep);
+      const nextStep = idx >= 0 ? steps[idx + 1] : null;
+      if (nextStep) {
+        showPromptForStep(nextStep);
       } else {
         window.setupInstaller.done();
       }
@@ -338,13 +369,17 @@
       }
       if (phase === 'done') {
         showState('success');
-        document.getElementById('success-heading').textContent = currentStep === 'libreoffice' ? 'LibreOffice installed' : 'Chromium installed';
-        document.getElementById('success-sub').textContent = status.needsChrome && currentStep === 'libreoffice' ? 'Next: Chrome.' : 'Continuing in a moment…';
+        document.getElementById('success-heading').textContent =
+          currentStep === 'libreoffice' ? 'LibreOffice installed' :
+          currentStep === 'chrome' ? 'Chromium installed' :
+          'ImageMagick ready';
+        const idx = steps.indexOf(currentStep);
+        const nextStep = idx >= 0 ? steps[idx + 1] : null;
+        document.getElementById('success-sub').textContent = nextStep ? 'Continuing with next step…' : 'Continuing in a moment…';
         const bar = document.getElementById('success-bar');
         if (bar) bar.style.width = '100%';
         setTimeout(() => {
-          if (currentStep === 'libreoffice' && status.needsChrome) showPromptForStep('chrome');
-          else window.setupInstaller.done();
+          nextOrDone();
         }, 2200);
         return;
       }
@@ -366,18 +401,20 @@
     window.setupInstaller.onLibreOfficeLog((data) => onLog('libreoffice', data));
     window.setupInstaller.onChromeProgress((data) => onProgress('chrome', data));
     window.setupInstaller.onChromeLog((data) => onLog('chrome', data));
+    window.setupInstaller.onImageMagickProgress((data) => onProgress('imagemagick', data));
+    window.setupInstaller.onImageMagickLog((data) => onLog('imagemagick', data));
 
     document.getElementById('btn-retry').onclick = () => startInstall(currentStep);
     document.getElementById('btn-skip-error').onclick = () => nextOrDone();
 
     window.setupInstaller.getStatus().then(s => {
       status = s;
-      if (!status.needsLibreOffice && !status.needsChrome) {
+      steps = getStepsFromStatus();
+      if (steps.length === 0) {
         window.setupInstaller.done();
         return;
       }
-      if (status.needsLibreOffice) showPromptForStep('libreoffice');
-      else showPromptForStep('chrome');
+      showPromptForStep(steps[0]);
     });
   </script>
 </body>
diff --git a/electron/servers/fastapi/api/v1/ppt/endpoints/files.py b/electron/servers/fastapi/api/v1/ppt/endpoints/files.py
index 5e517aa8..993d8049 100644
--- a/electron/servers/fastapi/api/v1/ppt/endpoints/files.py
+++ b/electron/servers/fastapi/api/v1/ppt/endpoints/files.py
@@ -4,6 +4,7 @@ from typing import Annotated, List, Optional
 from fastapi import APIRouter, Body, File, UploadFile
 
 from constants.documents import UPLOAD_ACCEPTED_FILE_TYPES
+from models.decompose_files_body import DecomposeFilesBody
 from models.decomposed_file_info import DecomposedFileInfo
 from services.temp_file_service import TEMP_FILE_SERVICE
 from services.documents_loader import DocumentsLoader
@@ -38,18 +39,21 @@ async def upload_files(files: Optional[List[UploadFile]]):
 
 
 @FILES_ROUTER.post("/decompose", response_model=List[DecomposedFileInfo])
-async def decompose_files(file_paths: Annotated[List[str], Body(embed=True)]):
+async def decompose_files(body: DecomposeFilesBody):
     temp_dir = TEMP_FILE_SERVICE.create_temp_dir(str(uuid.uuid4()))
 
     txt_files = []
     other_files = []
-    for file_path in file_paths:
+    for file_path in body.file_paths:
         if file_path.endswith(".txt"):
             txt_files.append(file_path)
         else:
             other_files.append(file_path)
 
-    documents_loader = DocumentsLoader(file_paths=other_files)
+    documents_loader = DocumentsLoader(
+        file_paths=other_files,
+        presentation_language=body.language,
+    )
     await documents_loader.load_documents(temp_dir)
     parsed_documents = documents_loader.documents
 
diff --git a/electron/servers/fastapi/api/v1/ppt/endpoints/outlines.py b/electron/servers/fastapi/api/v1/ppt/endpoints/outlines.py
index 764f5b27..e28d1f42 100644
--- a/electron/servers/fastapi/api/v1/ppt/endpoints/outlines.py
+++ b/electron/servers/fastapi/api/v1/ppt/endpoints/outlines.py
@@ -43,7 +43,10 @@ async def stream_outlines(
 
         additional_context = ""
         if presentation.file_paths:
-            documents_loader = DocumentsLoader(file_paths=presentation.file_paths)
+            documents_loader = DocumentsLoader(
+                file_paths=presentation.file_paths,
+                presentation_language=presentation.language,
+            )
             await documents_loader.load_documents(temp_dir)
             documents = documents_loader.documents
             if documents:
diff --git a/electron/servers/fastapi/api/v1/ppt/endpoints/presentation.py b/electron/servers/fastapi/api/v1/ppt/endpoints/presentation.py
index cb616c15..fa52de74 100644
--- a/electron/servers/fastapi/api/v1/ppt/endpoints/presentation.py
+++ b/electron/servers/fastapi/api/v1/ppt/endpoints/presentation.py
@@ -518,7 +518,10 @@ async def generate_presentation_handler(
                 await sql_session.commit()
 
             if request.files:
-                documents_loader = DocumentsLoader(file_paths=request.files)
+                documents_loader = DocumentsLoader(
+                    file_paths=request.files,
+                    presentation_language=request.language,
+                )
                 await documents_loader.load_documents()
                 documents = documents_loader.documents
                 if documents:
diff --git a/electron/servers/fastapi/constants/documents.py b/electron/servers/fastapi/constants/documents.py
index 9d5fef16..2bb4c3ed 100644
--- a/electron/servers/fastapi/constants/documents.py
+++ b/electron/servers/fastapi/constants/documents.py
@@ -13,8 +13,9 @@ SPREADSHEET_TYPES = ["text/csv", "application/csv"]
 PNG_MIME_TYPES = ["image/png"]
 JPEG_MIME_TYPES = ["image/jpeg"]
 WEBP_MIME_TYPES = ["image/webp"]
+IMAGE_MIME_TYPES = PNG_MIME_TYPES + JPEG_MIME_TYPES + WEBP_MIME_TYPES
 
 
 UPLOAD_ACCEPTED_FILE_TYPES = (
-    PDF_MIME_TYPES + TEXT_MIME_TYPES + POWERPOINT_TYPES + WORD_TYPES
+    PDF_MIME_TYPES + TEXT_MIME_TYPES + POWERPOINT_TYPES + WORD_TYPES + IMAGE_MIME_TYPES
 )
diff --git a/electron/servers/fastapi/models/decompose_files_body.py b/electron/servers/fastapi/models/decompose_files_body.py
new file mode 100644
index 00000000..9caeb88c
--- /dev/null
+++ b/electron/servers/fastapi/models/decompose_files_body.py
@@ -0,0 +1,11 @@
+from typing import List, Optional
+
+from pydantic import BaseModel, Field
+
+
+class DecomposeFilesBody(BaseModel):
+    file_paths: List[str]
+    language: Optional[str] = Field(
+        default=None,
+        description="Presentation language from the UI; used as LiteParse/Tesseract OCR language hint.",
+    )
diff --git a/electron/servers/fastapi/pyproject.toml b/electron/servers/fastapi/pyproject.toml
index 18efd476..460739d7 100644
--- a/electron/servers/fastapi/pyproject.toml
+++ b/electron/servers/fastapi/pyproject.toml
@@ -1,47 +1,45 @@
-[project]
-name = "presenton-backend"
-version = "0.1.0"
-description = "Add your description here"
-requires-python = ">=3.11,<3.12"
-dependencies = [
-    "alembic>=1.14.0",
-    "aiohttp>=3.12.15",
-    "aiomysql>=0.2.0",
-    "aiosqlite>=0.21.0",
-    "anthropic>=0.60.0",
-    "asyncpg>=0.30.0",
-    "dirtyjson>=1.0.8",
-    # Platform-specific: docling for Linux/macOS only
-    "docling>=2.43.0; sys_platform != 'win32'",
-    "fastapi[standard]>=0.116.1",
-    "fastembed-vectorstore>=0.5.2",
-    "fastmcp>=2.11.0",
-    "google-genai>=1.28.0",
-    # Platform-specific: greenlet for macOS only (critical for SQLAlchemy async)
-    "greenlet>=3.0.0; sys_platform == 'darwin'",
-    "nltk>=3.9.1",
-    "openai>=1.98.0",
-    "pathvalidate>=3.3.1",
-    "pdfplumber>=0.11.7",
-    # Platform-specific: docx2everything for DOCX/Markdown extraction on Windows
-    "docx2everything>=1.0.0; sys_platform == 'win32'",
-    "pyinstaller>=6.18.0",
-    "pytest>=8.4.1",
-    "python-pptx>=1.0.2; sys_platform == 'win32'",
-    "redis>=6.2.0",
-    "sqlmodel>=0.0.24",
-]
-
-[tool.uv]
-index-strategy = "unsafe-best-match"
-
-[[tool.uv.index]]
-url = "https://download.pytorch.org/whl/cpu"
-
-[dependency-groups]
-dev = [
-]
-
-[tool.setuptools.packages.find]
-where = ["."]
-include = ["api*", "enums*", "models*", "services*", "constants*", "utils*"]
+[project]
+name = "presenton-backend"
+version = "0.1.0"
+description = "Add your description here"
+requires-python = ">=3.11,<3.12"
+dependencies = [
+    "alembic>=1.14.0",
+    "aiohttp>=3.12.15",
+    "aiomysql>=0.2.0",
+    "aiosqlite>=0.21.0",
+    "anthropic>=0.60.0",
+    "asyncpg>=0.30.0",
+    "dirtyjson>=1.0.8",
+    "fastapi[standard]>=0.116.1",
+    "fastembed-vectorstore>=0.5.2",
+    "fastmcp>=2.11.0",
+    "google-genai>=1.28.0",
+    # Platform-specific: greenlet for macOS only (critical for SQLAlchemy async)
+    "greenlet>=3.0.0; sys_platform == 'darwin'",
+    "nltk>=3.9.1",
+    "openai>=1.98.0",
+    "pathvalidate>=3.3.1",
+    "pdfplumber>=0.11.7",
+    # Platform-specific: docx2everything for DOCX/Markdown extraction on Windows
+    "docx2everything>=1.0.0; sys_platform == 'win32'",
+    "pyinstaller>=6.18.0",
+    "pytest>=8.4.1",
+    "python-pptx>=1.0.2",
+    "redis>=6.2.0",
+    "sqlmodel>=0.0.24",
+]
+
+[tool.uv]
+index-strategy = "unsafe-best-match"
+
+[[tool.uv.index]]
+url = "https://download.pytorch.org/whl/cpu"
+
+[dependency-groups]
+dev = [
+]
+
+[tool.setuptools.packages.find]
+where = ["."]
+include = ["api*", "enums*", "models*", "services*", "constants*", "utils*"]
diff --git a/electron/servers/fastapi/runtime_hook_docling.py b/electron/servers/fastapi/runtime_hook_docling.py
deleted file mode 100644
index b13aed51..00000000
--- a/electron/servers/fastapi/runtime_hook_docling.py
+++ /dev/null
@@ -1,78 +0,0 @@
-"""
-Runtime hook to fix docling metadata lookup and python-docx template path resolution in PyInstaller builds.
-
-PyInstaller doesn't always preserve package metadata (dist-info) in a way that
-importlib.metadata can find it. This hook patches the version lookup to return
-a default version if metadata isn't found, allowing docling to import successfully.
-
-Additionally, python-docx uses __file__ to locate template files, which doesn't work
-correctly in PyInstaller bundles. This hook patches the path resolution to use
-sys._MEIPASS to find the templates.
-"""
-import sys
-import os
-
-# Only apply this fix when running in PyInstaller bundle
-if getattr(sys, 'frozen', False) and hasattr(sys, '_MEIPASS'):
-    try:
-        import importlib.metadata
-        
-        # Store original version function
-        _original_version = importlib.metadata.version
-        
-        def _patched_version(package_name):
-            """Patched version that handles missing metadata gracefully."""
-            try:
-                return _original_version(package_name)
-            except importlib.metadata.PackageNotFoundError:
-                # For docling packages, return a default version if metadata not found
-                if package_name in ('docling', 'docling-core', 'docling-parse', 'docling-ibm-models'):
-                    # Return a reasonable default version to allow import to proceed
-                    return '2.43.0'
-                raise
-        
-        # Patch the version function
-        importlib.metadata.version = _patched_version
-        
-    except Exception:
-        # If patching fails, continue anyway
-        pass
-    
-    # Fix python-docx template path resolution
-    try:
-        import docx.parts.hdrftr as hdrftr_module
-        
-        # Store the original _default_header_xml function
-        if hasattr(hdrftr_module, '_default_header_xml'):
-            _original_default_header_xml = hdrftr_module._default_header_xml
-            
-            def _patched_default_header_xml():
-                """Patched function that resolves template path correctly in PyInstaller bundle."""
-                # Try to find the template file in the bundle
-                template_path = os.path.join(sys._MEIPASS, 'docx', 'templates', 'default-header.xml')
-                if os.path.exists(template_path):
-                    with open(template_path, 'rb') as f:
-                        return f.read()
-                # Fallback to original implementation
-                return _original_default_header_xml()
-            
-            # Patch the function
-            hdrftr_module._default_header_xml = _patched_default_header_xml
-        
-        # Also patch _default_footer_xml if it exists
-        if hasattr(hdrftr_module, '_default_footer_xml'):
-            _original_default_footer_xml = hdrftr_module._default_footer_xml
-            
-            def _patched_default_footer_xml():
-                """Patched function that resolves template path correctly in PyInstaller bundle."""
-                template_path = os.path.join(sys._MEIPASS, 'docx', 'templates', 'default-footer.xml')
-                if os.path.exists(template_path):
-                    with open(template_path, 'rb') as f:
-                        return f.read()
-                return _original_default_footer_xml()
-            
-            hdrftr_module._default_footer_xml = _patched_default_footer_xml
-            
-    except Exception:
-        # If patching fails, continue anyway
-        pass
\ No newline at end of file
diff --git a/electron/servers/fastapi/server.spec b/electron/servers/fastapi/server.spec
index b4220572..bb556d92 100644
--- a/electron/servers/fastapi/server.spec
+++ b/electron/servers/fastapi/server.spec
@@ -17,18 +17,6 @@ datas_docx2everything, binaries_docx2everything, hiddenimports_docx2everything =
 # collect_all returns empty lists if package not installed, so safe to call always
 datas_greenlet, binaries_greenlet, hiddenimports_greenlet = collect_all('greenlet')
 
-# Collect docling - only installed on Linux/macOS (via pyproject.toml)
-# collect_all returns empty lists if package not installed, so safe to call always
-datas_docling, binaries_docling, hiddenimports_docling = collect_all('docling')
-# Also collect docling dependencies which are needed for metadata lookup
-datas_docling_core, binaries_docling_core, hiddenimports_docling_core = collect_all('docling-core')
-datas_docling_parse, binaries_docling_parse, hiddenimports_docling_parse = collect_all('docling-parse')
-datas_docling_ibm, binaries_docling_ibm, hiddenimports_docling_ibm = collect_all('docling-ibm-models')
-
-# Collect python-docx (dependency of docling) - needed for Word document processing on Linux/macOS
-# collect_all returns empty lists if package not installed, so safe to call conditionally
-datas_docx, binaries_docx, hiddenimports_docx = collect_all('docx')
-
 # fastembed_cache is created at runtime when models are first used; include only if present (e.g. local dev)
 datas_fastembed_cache = [('fastembed_cache', 'fastembed_cache')] if os.path.isdir('fastembed_cache') else []
 
@@ -37,12 +25,12 @@ excludes = []
 a = Analysis(
     ['server.py'],
     pathex=[],
-    binaries=binaries_fastembed + binaries_fastembed_vs + binaries_onnx + binaries_pptx + binaries_docx2everything + binaries_greenlet + binaries_docling + binaries_docling_core + binaries_docling_parse + binaries_docling_ibm + binaries_docx,
+    binaries=binaries_fastembed + binaries_fastembed_vs + binaries_onnx + binaries_pptx + binaries_docx2everything + binaries_greenlet,
     datas=[
         ('assets', 'assets'),
         ('static', 'static'),
         ('alembic', 'alembic'),
-    ] + datas_fastembed_cache + datas_fastembed + datas_fastembed_vs + datas_onnx + datas_pptx + datas_docx2everything + datas_greenlet + datas_docling + datas_docling_core + datas_docling_parse + datas_docling_ibm + datas_docx,
+    ] + datas_fastembed_cache + datas_fastembed + datas_fastembed_vs + datas_onnx + datas_pptx + datas_docx2everything + datas_greenlet,
     hiddenimports=[
         'aiosqlite',
         'alembic',
@@ -52,10 +40,10 @@ a = Analysis(
         'greenlet',
         'greenlet._greenlet',
         'importlib.metadata',
-    ] + hiddenimports_fastembed + hiddenimports_fastembed_vs + hiddenimports_onnx + hiddenimports_pptx + hiddenimports_docx2everything + hiddenimports_greenlet + hiddenimports_docling + hiddenimports_docling_core + hiddenimports_docling_parse + hiddenimports_docling_ibm + hiddenimports_docx,
+    ] + hiddenimports_fastembed + hiddenimports_fastembed_vs + hiddenimports_onnx + hiddenimports_pptx + hiddenimports_docx2everything + hiddenimports_greenlet,
     hookspath=[],
     hooksconfig={},
-    runtime_hooks=['runtime_hook_docling.py'],
+    runtime_hooks=[],
     excludes=excludes,
     noarchive=False,
     optimize=0,
diff --git a/electron/servers/fastapi/services/docling_service.py b/electron/servers/fastapi/services/docling_service.py
deleted file mode 100644
index a04430f9..00000000
--- a/electron/servers/fastapi/services/docling_service.py
+++ /dev/null
@@ -1,38 +0,0 @@
-from docling.document_converter import (
-    DocumentConverter,
-    PdfFormatOption,
-    PowerpointFormatOption,
-    WordFormatOption,
-)
-from docling.datamodel.pipeline_options import PdfPipelineOptions
-from docling.datamodel.base_models import InputFormat
-from utils.path_helpers import patch_python_docx_templates
-
-
-class DoclingService:
-    def __init__(self):
-        # Patch python-docx template path resolution before initializing converter
-        # This is safe to call in any environment (Docker, development, PyInstaller)
-        patch_python_docx_templates()
-        
-        self.pipeline_options = PdfPipelineOptions()
-        self.pipeline_options.do_ocr = False
-
-        self.converter = DocumentConverter(
-            allowed_formats=[InputFormat.PPTX, InputFormat.PDF, InputFormat.DOCX],
-            format_options={
-                InputFormat.DOCX: WordFormatOption(
-                    pipeline_options=self.pipeline_options,
-                ),
-                InputFormat.PPTX: PowerpointFormatOption(
-                    pipeline_options=self.pipeline_options,
-                ),
-                InputFormat.PDF: PdfFormatOption(
-                    pipeline_options=self.pipeline_options,
-                ),
-            },
-        )
-
-    def parse_to_markdown(self, file_path: str) -> str:
-        result = self.converter.convert(file_path)
-        return result.document.export_to_markdown()
diff --git a/electron/servers/fastapi/services/documents_loader.py b/electron/servers/fastapi/services/documents_loader.py
index a84e393a..f9bc6b23 100644
--- a/electron/servers/fastapi/services/documents_loader.py
+++ b/electron/servers/fastapi/services/documents_loader.py
@@ -1,45 +1,37 @@
 import mimetypes
-import sys
 from fastapi import HTTPException
 import os, asyncio
 from typing import List, Optional, Tuple
 
 import pdfplumber
 from constants.documents import (
+    IMAGE_MIME_TYPES,
     PDF_MIME_TYPES,
     POWERPOINT_TYPES,
     TEXT_MIME_TYPES,
     WORD_TYPES,
 )
+from services.liteparse_service import LiteParseError, LiteParseService
+from utils.ocr_language import presentation_language_to_ocr_code
 
-# Platform-specific document service imports
-is_windows = sys.platform == 'win32'
-if not is_windows:
-    from services.docling_service import DoclingService
-    DocumentService = None
-else:
-    DoclingService = None
+# Optional fallback converter (primarily useful on Windows)
+try:
     from services.lightweight_document_service import DocumentService
+except Exception:
+    DocumentService = None
 
 
 class DocumentsLoader:
 
-    def __init__(self, file_paths: List[str]):
+    def __init__(
+        self,
+        file_paths: List[str],
+        presentation_language: Optional[str] = None,
+    ):
         self._file_paths = file_paths
-
-        # Initialize document service based on platform
-        if not is_windows and DoclingService is not None:
-            # Use DoclingService on Linux/macOS
-            self.docling_service = DoclingService()
-            self.document_service = None
-        elif is_windows and DocumentService is not None:
-            # Use lightweight DocumentService on Windows
-            self.docling_service = None
-            self.document_service = DocumentService()
-        else:
-            # Fallback if neither is available
-            self.docling_service = None
-            self.document_service = None
+        self._ocr_language = presentation_language_to_ocr_code(presentation_language)
+        self.liteparse_service = LiteParseService()
+        self.document_service = DocumentService() if DocumentService is not None else None
 
         self._documents: List[str] = []
         self._images: List[List[str]] = []
@@ -83,6 +75,8 @@ class DocumentsLoader:
                 document = self.load_powerpoint(file_path)
             elif mime_type in WORD_TYPES:
                 document = self.load_msword(file_path)
+            elif mime_type in IMAGE_MIME_TYPES:
+                document = self.load_image(file_path)
 
             documents.append(document)
             images.append(imgs)
@@ -101,43 +95,43 @@ class DocumentsLoader:
         document: str = ""
 
         if load_text:
-            document = await self.load_text_from_pdf_locally(file_path)
+            document = await asyncio.to_thread(self._parse_with_liteparse, file_path)
 
         if load_images:
             image_paths = await self.get_page_images_from_pdf_async(file_path, temp_dir)
 
         return document, image_paths
 
-    async def load_text_from_pdf_locally(self, file_path: str) -> str:
-        return await asyncio.to_thread(self._extract_text_from_pdf, file_path)
-
-    @staticmethod
-    def _extract_text_from_pdf(file_path: str) -> str:
-        texts: List[str] = []
-        with pdfplumber.open(file_path) as pdf:
-            for idx, page in enumerate(pdf.pages):
-                page_text = f"## Page {idx + 1}\n"
-                page_text += page.extract_text() or ""
-                texts.append(page_text)
-        return "\n\n".join(texts)
-
     async def load_text(self, file_path: str) -> str:
         with open(file_path, "r", encoding="utf-8") as file:
             return await asyncio.to_thread(file.read)
 
     def load_msword(self, file_path: str) -> str:
-        if self.docling_service is not None:
-            return self.docling_service.parse_to_markdown(file_path)
-        elif self.document_service is not None:
-            return self.document_service.parse_to_markdown(file_path)
-        return ""  # Document service not available
+        return self._parse_with_liteparse(file_path)
 
     def load_powerpoint(self, file_path: str) -> str:
-        if self.docling_service is not None:
-            return self.docling_service.parse_to_markdown(file_path)
-        elif self.document_service is not None:
-            return self.document_service.parse_to_markdown(file_path)
-        return ""  # Document service not available
+        return self._parse_with_liteparse(file_path)
+
+    def load_image(self, file_path: str) -> str:
+        return self._parse_with_liteparse(file_path)
+
+    def _parse_with_liteparse(self, file_path: str) -> str:
+        try:
+            return self.liteparse_service.parse_to_markdown(
+                file_path,
+                ocr_enabled=True,
+                ocr_language=self._ocr_language,
+            )
+        except LiteParseError as exc:
+            if self.document_service is not None:
+                try:
+                    return self.document_service.parse_to_markdown(file_path)
+                except Exception:
+                    pass
+            raise HTTPException(
+                status_code=500,
+                detail=f"Failed to parse document {os.path.basename(file_path)}: {exc}",
+            ) from exc
 
     @classmethod
     def get_page_images_from_pdf(cls, file_path: str, temp_dir: str) -> List[str]:
diff --git a/electron/servers/fastapi/services/lightweight_document_service.py b/electron/servers/fastapi/services/lightweight_document_service.py
index 8aaf24d0..b89e4325 100644
--- a/electron/servers/fastapi/services/lightweight_document_service.py
+++ b/electron/servers/fastapi/services/lightweight_document_service.py
@@ -1,177 +1,177 @@
-"""
-Lightweight document converter for Windows/MSIX compatibility.
-Uses pure-Python libraries: pdfplumber for PDF, docx2txt for DOCX, python-pptx for PPTX.
-No subprocess, no external runtimes, MSIX/Appx safe.
-"""
-import os
-from typing import List, Optional
-
-import docx2everything
-import pdfplumber
-from pptx import Presentation
-
-
-class LightweightDocumentConverter:
-    """Lightweight document converter supporting PDF, DOCX, and PPTX."""
-    
-    def convert(self, file_path: str) -> str:
-        """
-        Convert document to markdown text.
-        
-        Args:
-            file_path: Path to the document file
-            
-        Returns:
-            Extracted text in markdown format
-            
-        Raises:
-            ValueError: If file format is not supported
-            FileNotFoundError: If file does not exist
-        """
-        if not os.path.exists(file_path):
-            raise FileNotFoundError(f"File not found: {file_path}")
-        
-        file_ext = os.path.splitext(file_path)[1].lower()
-        
-        if file_ext == '.pdf':
-            return self._convert_pdf(file_path)
-        elif file_ext == '.docx':
-            return self._convert_docx(file_path)
-        elif file_ext == '.pptx':
-            return self._convert_pptx(file_path)
-        else:
-            raise ValueError(f"Unsupported file format: {file_ext}")
-    
-    def _convert_pdf(self, path: str) -> str:
-        """
-        Convert PDF to markdown using pdfplumber.
-
-        Args:
-            path: Path to PDF file
-
-        Returns:
-            Extracted text in markdown format
-        """
-        texts: List[str] = []
-        with pdfplumber.open(path) as pdf:
-            for idx, page in enumerate(pdf.pages):
-                page_text = f"## Page {idx + 1}\n"
-                page_text += page.extract_text() or ""
-                texts.append(page_text)
-        return "\n\n".join(texts)
-    
-    def _convert_docx(self, path: str) -> str:
-        """
-        Extract markdown from DOCX using docx2everything (no images).
-
-        Args:
-            path: Path to DOCX file
-
-        Returns:
-            Extracted markdown (no images)
-        """
-        # Use the correct API: process_to_markdown(path) without img_dir extracts markdown without images
-        markdown = docx2everything.process_to_markdown(path)
-        return markdown if markdown else ""
-    
-    def _convert_pptx(self, path: str) -> str:
-        """
-        Convert PPTX to markdown using python-pptx.
-        
-        Args:
-            path: Path to PPTX file
-            
-        Returns:
-            Extracted text in markdown format
-        """
-        prs = Presentation(path)
-        markdown_parts = []
-        
-        for slide_num, slide in enumerate(prs.slides, start=1):
-            slide_parts = []
-            
-            # Extract slide title (usually first shape with title placeholder)
-            title_text = None
-            for shape in slide.shapes:
-                if hasattr(shape, "placeholder"):
-                    if shape.placeholder.placeholder_format.type == 1:  # Title placeholder
-                        if hasattr(shape, "text") and shape.text.strip():
-                            title_text = shape.text.strip()
-                            break
-            
-            # If no title placeholder found, try to find text box at top
-            if not title_text:
-                for shape in slide.shapes:
-                    if hasattr(shape, "text") and shape.text.strip():
-                        # Check if it's likely a title (first text shape, short text)
-                        text = shape.text.strip()
-                        if len(text) < 200:  # Heuristic: titles are usually short
-                            title_text = text
-                            break
-            
-            # Add slide title
-            if title_text:
-                slide_parts.append(f"# {title_text}")
-            else:
-                slide_parts.append(f"# Slide {slide_num}")
-            
-            # Extract content (bullet points and text)
-            for shape in slide.shapes:
-                if not hasattr(shape, "text"):
-                    continue
-                
-                text = shape.text.strip()
-                if not text:
-                    continue
-                
-                # Skip if this is the title we already added
-                if title_text and text == title_text:
-                    continue
-                
-                # Check if it's a text frame with paragraphs (bullet points)
-                if hasattr(shape, "text_frame"):
-                    paragraphs = shape.text_frame.paragraphs
-                    if len(paragraphs) > 1:
-                        # Multiple paragraphs - likely bullet points
-                        for para in paragraphs:
-                            para_text = para.text.strip()
-                            if para_text:
-                                # Check bullet level
-                                level = para.level
-                                indent = "  " * level
-                                slide_parts.append(f"{indent}- {para_text}")
-                    else:
-                        # Single paragraph
-                        if text and text != title_text:
-                            slide_parts.append(text)
-                else:
-                    # Plain text shape
-                    if text and text != title_text:
-                        slide_parts.append(text)
-            
-            if slide_parts:
-                markdown_parts.append("\n".join(slide_parts))
-        
-        return "\n\n---\n\n".join(markdown_parts)
-
-
-class DocumentService:
-    """
-    Document service wrapper providing parse_to_markdown interface.
-    Compatible with DoclingService interface for easy swapping.
-    """
-    
-    def __init__(self):
-        self.converter = LightweightDocumentConverter()
-    
-    def parse_to_markdown(self, file_path: str) -> str:
-        """
-        Parse document to markdown format.
-        
-        Args:
-            file_path: Path to the document file
-            
-        Returns:
-            Extracted text in markdown format
-        """
-        return self.converter.convert(file_path)
+"""
+Lightweight document converter for Windows/MSIX compatibility.
+Uses pure-Python libraries: pdfplumber for PDF, docx2txt for DOCX, python-pptx for PPTX.
+No subprocess, no external runtimes, MSIX/Appx safe.
+"""
+import os
+from typing import List, Optional
+
+import docx2everything
+import pdfplumber
+from pptx import Presentation
+
+
+class LightweightDocumentConverter:
+    """Lightweight document converter supporting PDF, DOCX, and PPTX."""
+    
+    def convert(self, file_path: str) -> str:
+        """
+        Convert document to markdown text.
+        
+        Args:
+            file_path: Path to the document file
+            
+        Returns:
+            Extracted text in markdown format
+            
+        Raises:
+            ValueError: If file format is not supported
+            FileNotFoundError: If file does not exist
+        """
+        if not os.path.exists(file_path):
+            raise FileNotFoundError(f"File not found: {file_path}")
+        
+        file_ext = os.path.splitext(file_path)[1].lower()
+        
+        if file_ext == '.pdf':
+            return self._convert_pdf(file_path)
+        elif file_ext == '.docx':
+            return self._convert_docx(file_path)
+        elif file_ext == '.pptx':
+            return self._convert_pptx(file_path)
+        else:
+            raise ValueError(f"Unsupported file format: {file_ext}")
+    
+    def _convert_pdf(self, path: str) -> str:
+        """
+        Convert PDF to markdown using pdfplumber.
+
+        Args:
+            path: Path to PDF file
+
+        Returns:
+            Extracted text in markdown format
+        """
+        texts: List[str] = []
+        with pdfplumber.open(path) as pdf:
+            for idx, page in enumerate(pdf.pages):
+                page_text = f"## Page {idx + 1}\n"
+                page_text += page.extract_text() or ""
+                texts.append(page_text)
+        return "\n\n".join(texts)
+    
+    def _convert_docx(self, path: str) -> str:
+        """
+        Extract markdown from DOCX using docx2everything (no images).
+
+        Args:
+            path: Path to DOCX file
+
+        Returns:
+            Extracted markdown (no images)
+        """
+        # Use the correct API: process_to_markdown(path) without img_dir extracts markdown without images
+        markdown = docx2everything.process_to_markdown(path)
+        return markdown if markdown else ""
+    
+    def _convert_pptx(self, path: str) -> str:
+        """
+        Convert PPTX to markdown using python-pptx.
+        
+        Args:
+            path: Path to PPTX file
+            
+        Returns:
+            Extracted text in markdown format
+        """
+        prs = Presentation(path)
+        markdown_parts = []
+        
+        for slide_num, slide in enumerate(prs.slides, start=1):
+            slide_parts = []
+            
+            # Extract slide title (usually first shape with title placeholder)
+            title_text = None
+            for shape in slide.shapes:
+                if hasattr(shape, "placeholder"):
+                    if shape.placeholder.placeholder_format.type == 1:  # Title placeholder
+                        if hasattr(shape, "text") and shape.text.strip():
+                            title_text = shape.text.strip()
+                            break
+            
+            # If no title placeholder found, try to find text box at top
+            if not title_text:
+                for shape in slide.shapes:
+                    if hasattr(shape, "text") and shape.text.strip():
+                        # Check if it's likely a title (first text shape, short text)
+                        text = shape.text.strip()
+                        if len(text) < 200:  # Heuristic: titles are usually short
+                            title_text = text
+                            break
+            
+            # Add slide title
+            if title_text:
+                slide_parts.append(f"# {title_text}")
+            else:
+                slide_parts.append(f"# Slide {slide_num}")
+            
+            # Extract content (bullet points and text)
+            for shape in slide.shapes:
+                if not hasattr(shape, "text"):
+                    continue
+                
+                text = shape.text.strip()
+                if not text:
+                    continue
+                
+                # Skip if this is the title we already added
+                if title_text and text == title_text:
+                    continue
+                
+                # Check if it's a text frame with paragraphs (bullet points)
+                if hasattr(shape, "text_frame"):
+                    paragraphs = shape.text_frame.paragraphs
+                    if len(paragraphs) > 1:
+                        # Multiple paragraphs - likely bullet points
+                        for para in paragraphs:
+                            para_text = para.text.strip()
+                            if para_text:
+                                # Check bullet level
+                                level = para.level
+                                indent = "  " * level
+                                slide_parts.append(f"{indent}- {para_text}")
+                    else:
+                        # Single paragraph
+                        if text and text != title_text:
+                            slide_parts.append(text)
+                else:
+                    # Plain text shape
+                    if text and text != title_text:
+                        slide_parts.append(text)
+            
+            if slide_parts:
+                markdown_parts.append("\n".join(slide_parts))
+        
+        return "\n\n---\n\n".join(markdown_parts)
+
+
+class DocumentService:
+    """
+    Document service wrapper providing parse_to_markdown interface.
+    Same parse_to_markdown entry point as LiteParseService for optional Windows fallback.
+    """
+    
+    def __init__(self):
+        self.converter = LightweightDocumentConverter()
+    
+    def parse_to_markdown(self, file_path: str) -> str:
+        """
+        Parse document to markdown format.
+        
+        Args:
+            file_path: Path to the document file
+            
+        Returns:
+            Extracted text in markdown format
+        """
+        return self.converter.convert(file_path)
diff --git a/electron/servers/fastapi/services/liteparse_service.py b/electron/servers/fastapi/services/liteparse_service.py
new file mode 100644
index 00000000..eacaaca6
--- /dev/null
+++ b/electron/servers/fastapi/services/liteparse_service.py
@@ -0,0 +1,197 @@
+import json
+import os
+import subprocess
+from typing import Any, Dict, Tuple
+
+
+class LiteParseError(Exception):
+    pass
+
+
+class LiteParseService:
+    def __init__(self, timeout_seconds: int = 180):
+        self.timeout_seconds = timeout_seconds
+        self.node_binary = os.getenv("LITEPARSE_NODE_BINARY", "node")
+        self.runner_path = os.getenv("LITEPARSE_RUNNER_PATH", self._resolve_runner_path())
+        self.runner_dir = os.path.dirname(self.runner_path)
+        self._npm_project_root = self._resolve_npm_project_root()
+
+    def _resolve_npm_project_root(self) -> str:
+        """Directory whose node_modules contains @llamaindex/liteparse (runner dir or Electron app root)."""
+        local_nm = os.path.join(
+            self.runner_dir, "node_modules", "@llamaindex", "liteparse"
+        )
+        if os.path.isdir(local_nm):
+            return self.runner_dir
+        electron_nm = os.path.abspath(
+            os.path.join(self.runner_dir, "..", "..", "node_modules", "@llamaindex", "liteparse")
+        )
+        if os.path.isdir(electron_nm):
+            return os.path.abspath(os.path.join(self.runner_dir, "..", ".."))
+        return os.path.abspath(os.path.join(self.runner_dir, "..", ".."))
+
+    @staticmethod
+    def _resolve_runner_path() -> str:
+        cwd = os.path.abspath(".")
+        candidates = [
+            # electron/servers/fastapi → electron/resources/...
+            os.path.abspath(
+                os.path.join(
+                    cwd, "..", "..", "resources", "document-extraction", "liteparse_runner.mjs"
+                )
+            ),
+            # servers/fastapi (repo root layout) → electron/resources/...
+            os.path.abspath(
+                os.path.join(
+                    cwd,
+                    "..",
+                    "..",
+                    "electron",
+                    "resources",
+                    "document-extraction",
+                    "liteparse_runner.mjs",
+                )
+            ),
+            # PyInstaller bundle layout
+            os.path.abspath(
+                os.path.join(
+                    cwd, "..", "..", "app", "resources", "document-extraction", "liteparse_runner.mjs"
+                )
+            ),
+            # Docker / explicit layout
+            "/app/document-extraction-liteparse/liteparse_runner.mjs",
+        ]
+        for path in candidates:
+            if os.path.isfile(path):
+                return path
+        return candidates[0]
+
+    def check_runtime_ready(self) -> Tuple[bool, str]:
+        if not os.path.isfile(self.runner_path):
+            return False, f"LiteParse runner not found at: {self.runner_path}"
+
+        try:
+            subprocess.run(
+                [self.node_binary, "--version"],
+                cwd=self.runner_dir,
+                check=True,
+                capture_output=True,
+                text=True,
+                timeout=10,
+            )
+        except Exception as exc:
+            return False, f"Node.js runtime is unavailable: {exc}"
+
+        liteparse_dir = os.path.join(
+            self._npm_project_root, "node_modules", "@llamaindex", "liteparse"
+        )
+        if not os.path.isdir(liteparse_dir):
+            return (
+                False,
+                f"LiteParse npm package missing at {liteparse_dir}. Run npm install in the Electron app directory.",
+            )
+
+        # @llamaindex/liteparse is ESM-only; require.resolve() fails. Use dynamic import.
+        try:
+            subprocess.run(
+                [
+                    self.node_binary,
+                    "--input-type=module",
+                    "-e",
+                    "import '@llamaindex/liteparse'",
+                ],
+                cwd=self._npm_project_root,
+                check=True,
+                capture_output=True,
+                text=True,
+                timeout=20,
+            )
+        except Exception as exc:
+            return False, f"LiteParse dependency is unavailable: {exc}"
+
+        return True, "ok"
+
+    def parse_to_markdown(
+        self,
+        file_path: str,
+        ocr_enabled: bool = True,
+        ocr_language: str = "eng",
+    ) -> str:
+        result = self.parse(
+            file_path=file_path,
+            ocr_enabled=ocr_enabled,
+            ocr_language=ocr_language,
+        )
+        return str(result.get("text") or "")
+
+    def parse(
+        self,
+        file_path: str,
+        ocr_enabled: bool = True,
+        ocr_language: str = "eng",
+    ) -> Dict[str, Any]:
+        is_ready, reason = self.check_runtime_ready()
+        if not is_ready:
+            raise LiteParseError(reason)
+
+        command = [
+            self.node_binary,
+            self.runner_path,
+            "--file",
+            file_path,
+            "--ocr-enabled",
+            "true" if ocr_enabled else "false",
+            "--ocr-language",
+            ocr_language,
+        ]
+        ocr_server = (os.getenv("LITEPARSE_OCR_SERVER_URL") or "").strip()
+        if ocr_server:
+            command.extend(["--ocr-server-url", ocr_server])
+        tessdata = (os.getenv("LITEPARSE_TESSDATA_PATH") or "").strip()
+        if tessdata:
+            command.extend(["--tessdata-path", tessdata])
+
+        process = subprocess.run(
+            command,
+            cwd=self._npm_project_root,
+            capture_output=True,
+            text=True,
+            timeout=self.timeout_seconds,
+            env=os.environ.copy(),
+        )
+        payload = self._decode_runner_output(process.stdout)
+
+        if process.returncode != 0:
+            message = payload.get("error") or process.stderr.strip() or "Unknown error"
+            raise LiteParseError(message)
+
+        if not payload.get("ok"):
+            raise LiteParseError(payload.get("error") or "LiteParse parse failed")
+
+        return payload
+
+    @staticmethod
+    def _decode_runner_output(stdout: str) -> Dict[str, Any]:
+        raw = (stdout or "").lstrip("\ufeff").strip()
+        if not raw:
+            raise LiteParseError("LiteParse runner returned empty output")
+
+        # Prefer the last line that parses as JSON (handles stray log lines before our payload).
+        lines = [line.strip() for line in raw.splitlines() if line.strip()]
+        for line in reversed(lines):
+            try:
+                parsed = json.loads(line)
+                if isinstance(parsed, dict):
+                    return parsed
+            except json.JSONDecodeError:
+                continue
+
+        # Single blob without newlines (entire stdout is one JSON object).
+        try:
+            parsed = json.loads(raw)
+            if isinstance(parsed, dict):
+                return parsed
+        except json.JSONDecodeError:
+            pass
+
+        raise LiteParseError("LiteParse runner returned invalid JSON output")
diff --git a/electron/servers/fastapi/utils/ocr_language.py b/electron/servers/fastapi/utils/ocr_language.py
new file mode 100644
index 00000000..aa988f27
--- /dev/null
+++ b/electron/servers/fastapi/utils/ocr_language.py
@@ -0,0 +1,126 @@
+"""
+Map presentation UI language strings (LanguageType enum values from Next.js) to
+Tesseract / LiteParse OCR language codes (ISO 639-3 where applicable).
+
+Keep keys in sync with:
+electron/servers/nextjs/app/(presentation-generator)/upload/type.ts → LanguageType
+"""
+
+from __future__ import annotations
+
+import re
+from typing import Optional
+
+# Values must match `LanguageType` string literals in the upload UI.
+PRESENTATION_LANGUAGE_TO_TESSERACT: dict[str, str] = {
+    "English": "eng",
+    "Spanish (Español)": "spa",
+    "French (Français)": "fra",
+    "German (Deutsch)": "deu",
+    "Portuguese (Português)": "por",
+    "Italian (Italiano)": "ita",
+    "Dutch (Nederlands)": "nld",
+    "Russian (Русский)": "rus",
+    "Chinese (Simplified - 中文, 汉语)": "chi_sim",
+    "Chinese (Traditional - 中文, 漢語)": "chi_tra",
+    "Japanese (日本語)": "jpn",
+    "Korean (한국어)": "kor",
+    "Arabic (العربية)": "ara",
+    "Hindi (हिन्दी)": "hin",
+    "Bengali (বাংলা)": "ben",
+    "Polish (Polski)": "pol",
+    "Czech (Čeština)": "ces",
+    "Slovak (Slovenčina)": "slk",
+    "Hungarian (Magyar)": "hun",
+    "Romanian (Română)": "ron",
+    "Bulgarian (Български)": "bul",
+    "Greek (Ελληνικά)": "ell",
+    "Serbian (Српски / Srpski)": "srp",
+    "Croatian (Hrvatski)": "hrv",
+    "Bosnian (Bosanski)": "bos",
+    "Slovenian (Slovenščina)": "slv",
+    "Finnish (Suomi)": "fin",
+    "Swedish (Svenska)": "swe",
+    "Danish (Dansk)": "dan",
+    "Norwegian (Norsk)": "nor",
+    "Icelandic (Íslenska)": "isl",
+    "Lithuanian (Lietuvių)": "lit",
+    "Latvian (Latviešu)": "lav",
+    "Estonian (Eesti)": "est",
+    "Maltese (Malti)": "mlt",
+    "Welsh (Cymraeg)": "cym",
+    "Irish (Gaeilge)": "gle",
+    "Scottish Gaelic (Gàidhlig)": "gla",
+    "Ukrainian (Українська)": "ukr",
+    "Hebrew (עברית)": "heb",
+    "Persian/Farsi (فارسی)": "fas",
+    "Turkish (Türkçe)": "tur",
+    "Kurdish (Kurdî / کوردی)": "kmr",
+    "Pashto (پښتو)": "pus",
+    "Dari (دری)": "prs",
+    "Uzbek (Oʻzbek)": "uzb",
+    "Kazakh (Қазақша)": "kaz",
+    "Tajik (Тоҷикӣ)": "tgk",
+    "Turkmen (Türkmençe)": "tuk",
+    "Azerbaijani (Azərbaycan dili)": "aze",
+    "Urdu (اردو)": "urd",
+    "Tamil (தமிழ்)": "tam",
+    "Telugu (తెలుగు)": "tel",
+    "Marathi (मराठी)": "mar",
+    "Punjabi (ਪੰਜਾਬੀ / پنجابی)": "pan",
+    "Gujarati (ગુજરાતી)": "guj",
+    "Malayalam (മലയാളം)": "mal",
+    "Kannada (ಕನ್ನಡ)": "kan",
+    "Odia (ଓଡ଼ିଆ)": "ori",
+    "Sinhala (සිංහල)": "sin",
+    "Nepali (नेपाली)": "nep",
+    "Thai (ไทย)": "tha",
+    "Vietnamese (Tiếng Việt)": "vie",
+    "Lao (ລາວ)": "lao",
+    "Khmer (ភាសាខ្មែរ)": "khm",
+    "Burmese (မြန်မာစာ)": "mya",
+    "Tagalog/Filipino (Tagalog/Filipino)": "tgl",
+    "Javanese (Basa Jawa)": "jav",
+    "Sundanese (Basa Sunda)": "sun",
+    "Malay (Bahasa Melayu)": "msa",
+    "Mongolian (Монгол)": "mon",
+    "Swahili (Kiswahili)": "swa",
+    "Hausa (Hausa)": "hau",
+    "Yoruba (Yorùbá)": "yor",
+    "Igbo (Igbo)": "ibo",
+    "Amharic (አማርኛ)": "amh",
+    "Zulu (isiZulu)": "zul",
+    "Xhosa (isiXhosa)": "xho",
+    "Shona (ChiShona)": "sna",
+    "Somali (Soomaaliga)": "som",
+    "Basque (Euskara)": "eus",
+    "Catalan (Català)": "cat",
+    "Galician (Galego)": "glg",
+    "Quechua (Runasimi)": "que",
+    "Nahuatl (Nāhuatl)": "nah",
+    "Hawaiian (ʻŌlelo Hawaiʻi)": "haw",
+    "Maori (Te Reo Māori)": "mri",
+    # No dedicated Tahitian traineddata in default Tesseract bundles.
+    "Tahitian (Reo Tahiti)": "eng",
+    "Samoan (Gagana Samoa)": "smo",
+}
+
+_LOWER_MAP = {k.lower(): v for k, v in PRESENTATION_LANGUAGE_TO_TESSERACT.items()}
+
+_OCR_CODE_RE = re.compile(r"^[a-zA-Z0-9_,+]+$")
+
+
+def presentation_language_to_ocr_code(language: Optional[str]) -> str:
+    """Resolve UI language label to a Tesseract language code; default English."""
+    if language is None:
+        return "eng"
+    s = str(language).strip()
+    if not s:
+        return "eng"
+    if s in PRESENTATION_LANGUAGE_TO_TESSERACT:
+        code = PRESENTATION_LANGUAGE_TO_TESSERACT[s]
+    else:
+        code = _LOWER_MAP.get(s.lower(), "eng")
+    if not _OCR_CODE_RE.fullmatch(code):
+        return "eng"
+    return code
diff --git a/electron/servers/fastapi/utils/path_helpers.py b/electron/servers/fastapi/utils/path_helpers.py
index 60bff599..5cfbfb79 100644
--- a/electron/servers/fastapi/utils/path_helpers.py
+++ b/electron/servers/fastapi/utils/path_helpers.py
@@ -156,7 +156,7 @@ def patch_python_docx_templates():
     - Docker/Development: Returns immediately without patching (no-op)
     - PyInstaller: Patches the template loading functions
     
-    Note: This should be called before using docling service in PyInstaller bundles.
+    Note: Call before any code path that uses python-docx inside a PyInstaller bundle.
     """
     # Only patch if running in PyInstaller bundle
     # This check ensures Docker and development environments are unaffected
diff --git a/electron/servers/fastapi/uv.lock b/electron/servers/fastapi/uv.lock
index 74a53a69..3a6c2973 100644
--- a/electron/servers/fastapi/uv.lock
+++ b/electron/servers/fastapi/uv.lock
@@ -7,25 +7,6 @@ resolution-markers = [
     "sys_platform == 'darwin'",
 ]
 
-[[package]]
-name = "accelerate"
-version = "1.12.0"
-source = { registry = "https://pypi.org/simple" }
-dependencies = [
-    { name = "huggingface-hub" },
-    { name = "numpy" },
-    { name = "packaging" },
-    { name = "psutil" },
-    { name = "pyyaml" },
-    { name = "safetensors" },
-    { name = "torch", version = "2.10.0", source = { registry = "https://download.pytorch.org/whl/cpu" }, marker = "sys_platform == 'darwin'" },
-    { name = "torch", version = "2.10.0+cpu", source = { registry = "https://download.pytorch.org/whl/cpu" }, marker = "sys_platform != 'darwin'" },
-]
-sdist = { url = "https://files.pythonhosted.org/packages/4a/8e/ac2a9566747a93f8be36ee08532eb0160558b07630a081a6056a9f89bf1d/accelerate-1.12.0.tar.gz", hash = "sha256:70988c352feb481887077d2ab845125024b2a137a5090d6d7a32b57d03a45df6", size = 398399, upload-time = "2025-11-21T11:27:46.973Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/9f/d2/c581486aa6c4fbd7394c23c47b83fa1a919d34194e16944241daf9e762dd/accelerate-1.12.0-py3-none-any.whl", hash = "sha256:3e2091cd341423207e2f084a6654b1efcd250dc326f2a37d6dde446e07cabb11", size = 380935, upload-time = "2025-11-21T11:27:44.522Z" },
-]
-
 [[package]]
 name = "aiohappyeyeballs"
 version = "2.6.1"
@@ -156,12 +137,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/da/bb/d84f287fb1c217b30c328af987cf8bbe3897edf0518dcc5fa39412f794ec/anthropic-0.60.0-py3-none-any.whl", hash = "sha256:65ad1f088a960217aaf82ba91ff743d6c89e9d811c6d64275b9a7c59ee9ac3c6", size = 293116, upload-time = "2025-07-28T19:53:45.944Z" },
 ]
 
-[[package]]
-name = "antlr4-python3-runtime"
-version = "4.9.3"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/3e/38/7859ff46355f76f8d19459005ca000b6e7012f2f1ca597746cbcd1fbfe5e/antlr4-python3-runtime-4.9.3.tar.gz", hash = "sha256:f224469b4168294902bb1efa80a8bf7855f24c99aef99cbefc1bcd3cce77881b", size = 117034, upload-time = "2021-11-06T17:52:23.524Z" }
-
 [[package]]
 name = "anyio"
 version = "4.9.0"
@@ -222,19 +197,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/f9/58/cc6a08053f822f98f334d38a27687b69c6655fb05cd74a7a5e70a2aeed95/authlib-1.6.1-py2.py3-none-any.whl", hash = "sha256:e9d2031c34c6309373ab845afc24168fe9e93dc52d252631f52642f21f5ed06e", size = 239299, upload-time = "2025-07-20T07:38:39.259Z" },
 ]
 
-[[package]]
-name = "beautifulsoup4"
-version = "4.14.3"
-source = { registry = "https://pypi.org/simple" }
-dependencies = [
-    { name = "soupsieve" },
-    { name = "typing-extensions" },
-]
-sdist = { url = "https://files.pythonhosted.org/packages/c3/b0/1c6a16426d389813b48d95e26898aff79abbde42ad353958ad95cc8c9b21/beautifulsoup4-4.14.3.tar.gz", hash = "sha256:6292b1c5186d356bba669ef9f7f051757099565ad9ada5dd630bd9de5fa7fb86", size = 627737, upload-time = "2025-11-30T15:08:26.084Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/1a/39/47f9197bdd44df24d67ac8893641e16f386c984a0619ef2ee4c51fbbc019/beautifulsoup4-4.14.3-py3-none-any.whl", hash = "sha256:0918bfe44902e6ad8d57732ba310582e98da931428d231a5ecb9e7c703a735bb", size = 107721, upload-time = "2025-11-30T15:08:24.087Z" },
-]
-
 [[package]]
 name = "certifi"
 version = "2025.8.3"
@@ -309,18 +271,6 @@ wheels = [
     { url = "https://download.pytorch.org/whl/colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6" },
 ]
 
-[[package]]
-name = "colorlog"
-version = "6.10.1"
-source = { registry = "https://pypi.org/simple" }
-dependencies = [
-    { name = "colorama", marker = "sys_platform == 'win32'" },
-]
-sdist = { url = "https://files.pythonhosted.org/packages/a2/61/f083b5ac52e505dfc1c624eafbf8c7589a0d7f32daa398d2e7590efa5fda/colorlog-6.10.1.tar.gz", hash = "sha256:eb4ae5cb65fe7fec7773c2306061a8e63e02efc2c72eba9d27b0fa23c94f1321", size = 17162, upload-time = "2025-10-16T16:14:11.978Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/6d/c1/e419ef3723a074172b68aaa89c9f3de486ed4c2399e2dbd8113a4fdcaf9e/colorlog-6.10.1-py3-none-any.whl", hash = "sha256:2d7e8348291948af66122cff006c9f8da6255d224e7cf8e37d8de2df3bad8c9c", size = 11743, upload-time = "2025-10-16T16:14:10.512Z" },
-]
-
 [[package]]
 name = "cryptography"
 version = "45.0.5"
@@ -377,24 +327,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/df/e5/a7b6db64f08cfe065e531ec6b508fa7dac704fab70d05adb5bc0c2c1d1b6/cyclopts-3.22.5-py3-none-any.whl", hash = "sha256:92efb4a094d9812718d7efe0bffa319a19cb661f230dbf24406c18cd8809fb82", size = 84994, upload-time = "2025-07-31T18:18:35.939Z" },
 ]
 
-[[package]]
-name = "defusedxml"
-version = "0.7.1"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/0f/d5/c66da9b79e5bdb124974bfe172b4daf3c984ebd9c2a06e2b8a4dc7331c72/defusedxml-0.7.1.tar.gz", hash = "sha256:1bb3032db185915b62d7c6209c5a8792be6a32ab2fedacc84e01b52c51aa3e69", size = 75520, upload-time = "2021-03-08T10:59:26.269Z" }
-wheels = [
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-]
-
-[[package]]
-name = "dill"
-version = "0.4.1"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/81/e1/56027a71e31b02ddc53c7d65b01e68edf64dea2932122fe7746a516f75d5/dill-0.4.1.tar.gz", hash = "sha256:423092df4182177d4d8ba8290c8a5b640c66ab35ec7da59ccfa00f6fa3eea5fa", size = 187315, upload-time = "2026-01-19T02:36:56.85Z" }
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-]
-
 [[package]]
 name = "dirtyjson"
 version = "1.0.8"
@@ -422,122 +354,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/68/1b/e0a87d256e40e8c888847551b20a017a6b98139178505dc7ffb96f04e954/dnspython-2.7.0-py3-none-any.whl", hash = "sha256:b4c34b7d10b51bcc3a5071e7b8dee77939f1e878477eeecc965e9835f63c6c86", size = 313632, upload-time = "2024-10-05T20:14:57.687Z" },
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-version = "2.73.1"
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-    { name = "docling-core", extra = ["chunking"] },
-    { name = "docling-ibm-models" },
-    { name = "docling-parse" },
-    { name = "filetype" },
-    { name = "huggingface-hub" },
-    { name = "lxml" },
-    { name = "marko" },
-    { name = "ocrmac", marker = "sys_platform == 'darwin'" },
-    { name = "openpyxl" },
-    { name = "pandas" },
-    { name = "pillow" },
-    { name = "pluggy" },
-    { name = "polyfactory" },
-    { name = "pydantic" },
-    { name = "pydantic-settings" },
-    { name = "pylatexenc" },
-    { name = "pypdfium2" },
-    { name = "python-docx" },
-    { name = "python-pptx" },
-    { name = "rapidocr" },
-    { name = "requests" },
-    { name = "rtree" },
-    { name = "scipy" },
-    { name = "tqdm" },
-    { name = "typer" },
-]
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-[[package]]
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-    { name = "pillow" },
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-
-[package.optional-dependencies]
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-    { name = "transformers" },
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-    { name = "tree-sitter-c" },
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 ]
 
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 name = "urllib3"
 version = "2.5.0"
diff --git a/electron/servers/nextjs/app/(presentation-generator)/services/api/presentation-generation.ts b/electron/servers/nextjs/app/(presentation-generator)/services/api/presentation-generation.ts
index b6eea9b6..675c1fcf 100644
--- a/electron/servers/nextjs/app/(presentation-generator)/services/api/presentation-generation.ts
+++ b/electron/servers/nextjs/app/(presentation-generator)/services/api/presentation-generation.ts
@@ -29,7 +29,10 @@ export class PresentationGenerationApi {
     }
   }
 
-  static async decomposeDocuments(documentKeys: string[]) {
+  static async decomposeDocuments(
+    documentKeys: string[],
+    language?: string | null
+  ) {
     try {
       const response = await fetch(
         getApiUrl(`/api/v1/ppt/files/decompose`),
@@ -38,6 +41,7 @@ export class PresentationGenerationApi {
           headers: getHeader(),
           body: JSON.stringify({
             file_paths: documentKeys,
+            language: language ?? null,
           }),
           cache: "no-cache",
         }
diff --git a/electron/servers/nextjs/app/(presentation-generator)/upload/components/UploadPage.tsx b/electron/servers/nextjs/app/(presentation-generator)/upload/components/UploadPage.tsx
index 2dd3012a..44ccf537 100644
--- a/electron/servers/nextjs/app/(presentation-generator)/upload/components/UploadPage.tsx
+++ b/electron/servers/nextjs/app/(presentation-generator)/upload/components/UploadPage.tsx
@@ -132,7 +132,12 @@ const UploadPage = () => {
 
     if (documents.length > 0) {
       trackEvent(MixpanelEvent.Upload_Decompose_Documents_API_Call);
-      promises.push(PresentationGenerationApi.decomposeDocuments(documents));
+      promises.push(
+        PresentationGenerationApi.decomposeDocuments(
+          documents,
+          config?.language ?? null
+        )
+      );
     }
     const responses = await Promise.all(promises);
     dispatch(setPptGenUploadState({

From 6a6afc7ab79df4112315912d524034f81ee95999 Mon Sep 17 00:00:00 2001
From: sudipnext <parajulisudip123@outlook.com>
Date: Sun, 29 Mar 2026 18:58:16 +0545
Subject: [PATCH 2/3] feat: enhance document handling with new conversion
 service and MIME type support

---
 electron/app/utils/liteparse-check.ts         |  26 +--
 .../document-extraction/liteparse_runner.mjs  |   2 +-
 .../document-extraction/package.json          |   8 -
 .../api/v1/ppt/endpoints/pptx_slides.py       |   6 +-
 .../servers/fastapi/constants/documents.py    |  93 ++++++++--
 .../services/document_conversion_service.py   | 165 ++++++++++++++++++
 .../fastapi/services/documents_loader.py      |  87 ++++++---
 electron/servers/fastapi/utils/validators.py  |  22 ++-
 .../upload/components/SupportingDoc.tsx       |  57 +++---
 9 files changed, 369 insertions(+), 97 deletions(-)
 delete mode 100644 electron/resources/document-extraction/package.json
 create mode 100644 electron/servers/fastapi/services/document_conversion_service.py

diff --git a/electron/app/utils/liteparse-check.ts b/electron/app/utils/liteparse-check.ts
index 8384dd9c..3c42a74b 100644
--- a/electron/app/utils/liteparse-check.ts
+++ b/electron/app/utils/liteparse-check.ts
@@ -1,28 +1,6 @@
-import fs from "fs";
 import path from "path";
-import { spawnSync } from "child_process";
-import { baseDir, isDev } from "./constants";
+import { baseDir } from "./constants";
 
 export function getLiteParseRunnerPath(): string {
-  return isDev
-    ? path.join(baseDir, "resources", "document-extraction", "liteparse_runner.mjs")
-    : path.join(baseDir, "resources", "document-extraction", "liteparse_runner.mjs");
-}
-
-export function getLiteParseDependencyPath(): string {
-  return path.join(baseDir, "node_modules", "@llamaindex", "liteparse");
-}
-
-export function isLiteParseInstalled(): boolean {
-  const runnerPath = getLiteParseRunnerPath();
-  const liteparsePackagePath = getLiteParseDependencyPath();
-
-  if (!fs.existsSync(runnerPath)) return false;
-  if (!fs.existsSync(liteparsePackagePath)) return false;
-
-  const nodeCheck = spawnSync("node", ["--version"], {
-    stdio: "pipe",
-    windowsHide: true,
-  });
-  return nodeCheck.status === 0;
+  return path.join(baseDir, "resources", "document-extraction", "liteparse_runner.mjs");
 }
diff --git a/electron/resources/document-extraction/liteparse_runner.mjs b/electron/resources/document-extraction/liteparse_runner.mjs
index d8250744..6793610a 100644
--- a/electron/resources/document-extraction/liteparse_runner.mjs
+++ b/electron/resources/document-extraction/liteparse_runner.mjs
@@ -70,7 +70,7 @@ const ocrEnabled = parseBool(readArg("--ocr-enabled"), true);
 const dpi = toNumber(readArg("--dpi"), 150, 72, 600);
 const numWorkers = toNumber(
   readArg("--num-workers"),
-  Math.max(os.cpus().length - 1, 1),
+  Math.max(os.cpus().length - 4, 1),
   1,
   64
 );
diff --git a/electron/resources/document-extraction/package.json b/electron/resources/document-extraction/package.json
deleted file mode 100644
index 89e4c182..00000000
--- a/electron/resources/document-extraction/package.json
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-  "name": "presenton-document-extraction",
-  "private": true,
-  "type": "module",
-  "dependencies": {
-    "@llamaindex/liteparse": "^1.4.0"
-  }
-}
diff --git a/electron/servers/fastapi/api/v1/ppt/endpoints/pptx_slides.py b/electron/servers/fastapi/api/v1/ppt/endpoints/pptx_slides.py
index fd81bfcd..65200b7f 100644
--- a/electron/servers/fastapi/api/v1/ppt/endpoints/pptx_slides.py
+++ b/electron/servers/fastapi/api/v1/ppt/endpoints/pptx_slides.py
@@ -15,7 +15,7 @@ import re
 from services.documents_loader import DocumentsLoader
 from utils.asset_directory_utils import get_images_directory
 import uuid
-from constants.documents import POWERPOINT_TYPES
+from constants.documents import PPTX_MIME_TYPES
 
 
 def _get_soffice_binary() -> str:
@@ -330,7 +330,7 @@ async def process_pptx_slides(
     """
 
     # Validate PPTX file
-    if pptx_file.content_type not in POWERPOINT_TYPES:
+    if pptx_file.content_type not in PPTX_MIME_TYPES:
         raise HTTPException(
             status_code=400,
             detail=f"Invalid file type. Expected PPTX file, got {pptx_file.content_type}",
@@ -441,7 +441,7 @@ async def process_pptx_fonts(
     Uses the exact same font extraction and analysis utilities as the /pptx-slides endpoint.
     """
     # Validate PPTX file
-    if pptx_file.content_type not in POWERPOINT_TYPES:
+    if pptx_file.content_type not in PPTX_MIME_TYPES:
         raise HTTPException(
             status_code=400,
             detail=f"Invalid file type. Expected PPTX file, got {pptx_file.content_type}",
diff --git a/electron/servers/fastapi/constants/documents.py b/electron/servers/fastapi/constants/documents.py
index 2bb4c3ed..0b87a29b 100644
--- a/electron/servers/fastapi/constants/documents.py
+++ b/electron/servers/fastapi/constants/documents.py
@@ -1,21 +1,90 @@
+PDF_EXTENSIONS = [".pdf"]
+TEXT_EXTENSIONS = [".txt"]
+
+WORD_EXTENSIONS = [".doc", ".docx", ".docm", ".odt", ".rtf"]
+POWERPOINT_EXTENSIONS = [".ppt", ".pptx", ".pptm", ".odp"]
+SPREADSHEET_EXTENSIONS = [".xls", ".xlsx", ".xlsm", ".ods", ".csv", ".tsv"]
+
+JPEG_EXTENSIONS = [".jpg", ".jpeg"]
+PNG_EXTENSIONS = [".png"]
+GIF_EXTENSIONS = [".gif"]
+BMP_EXTENSIONS = [".bmp"]
+TIFF_EXTENSIONS = [".tiff", ".tif"]
+WEBP_EXTENSIONS = [".webp"]
+SVG_EXTENSIONS = [".svg"]
+IMAGE_EXTENSIONS = (
+    JPEG_EXTENSIONS
+    + PNG_EXTENSIONS
+    + GIF_EXTENSIONS
+    + BMP_EXTENSIONS
+    + TIFF_EXTENSIONS
+    + WEBP_EXTENSIONS
+    + SVG_EXTENSIONS
+)
+
+OFFICE_EXTENSIONS = WORD_EXTENSIONS + POWERPOINT_EXTENSIONS + SPREADSHEET_EXTENSIONS
+
 PDF_MIME_TYPES = ["application/pdf"]
-TEXT_MIME_TYPES = ["text/plain"]
-POWERPOINT_TYPES = [
-    "application/vnd.openxmlformats-officedocument.presentationml.presentation"
-]
-WORD_TYPES = [
+TEXT_MIME_TYPES = ["text/plain", "text/markdown"]
+
+WORD_MIME_TYPES = [
     "application/msword",
     "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+    "application/vnd.ms-word.document.macroenabled.12",
+    "application/vnd.oasis.opendocument.text",
+    "application/rtf",
+    "text/rtf",
 ]
-SPREADSHEET_TYPES = ["text/csv", "application/csv"]
 
+POWERPOINT_MIME_TYPES = [
+    "application/vnd.ms-powerpoint",
+    "application/vnd.openxmlformats-officedocument.presentationml.presentation",
+    "application/vnd.ms-powerpoint.presentation.macroenabled.12",
+    "application/vnd.oasis.opendocument.presentation",
+]
 
-PNG_MIME_TYPES = ["image/png"]
-JPEG_MIME_TYPES = ["image/jpeg"]
-WEBP_MIME_TYPES = ["image/webp"]
-IMAGE_MIME_TYPES = PNG_MIME_TYPES + JPEG_MIME_TYPES + WEBP_MIME_TYPES
+SPREADSHEET_MIME_TYPES = [
+    "application/vnd.ms-excel",
+    "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+    "application/vnd.ms-excel.sheet.macroenabled.12",
+    "application/vnd.oasis.opendocument.spreadsheet",
+    "text/csv",
+    "application/csv",
+    "text/tab-separated-values",
+    "text/tsv",
+]
 
+IMAGE_MIME_TYPES = [
+    "image/jpeg",
+    "image/png",
+    "image/gif",
+    "image/bmp",
+    "image/tiff",
+    "image/webp",
+    "image/svg+xml",
+]
 
-UPLOAD_ACCEPTED_FILE_TYPES = (
-    PDF_MIME_TYPES + TEXT_MIME_TYPES + POWERPOINT_TYPES + WORD_TYPES + IMAGE_MIME_TYPES
+UPLOAD_ACCEPTED_MIME_TYPES = (
+    PDF_MIME_TYPES
+    + TEXT_MIME_TYPES
+    + WORD_MIME_TYPES
+    + POWERPOINT_MIME_TYPES
+    + SPREADSHEET_MIME_TYPES
+    + IMAGE_MIME_TYPES
 )
+
+UPLOAD_ACCEPTED_EXTENSIONS = (
+    PDF_EXTENSIONS + TEXT_EXTENSIONS + OFFICE_EXTENSIONS + IMAGE_EXTENSIONS
+)
+
+# Includes both MIME types and extensions because some clients upload legacy
+# office files with generic content-type values.
+UPLOAD_ACCEPTED_FILE_TYPES = UPLOAD_ACCEPTED_MIME_TYPES + UPLOAD_ACCEPTED_EXTENSIONS
+
+# Kept for endpoints that strictly require modern .pptx files.
+PPTX_MIME_TYPES = ["application/vnd.openxmlformats-officedocument.presentationml.presentation"]
+
+# Backward compatibility aliases used across existing modules.
+POWERPOINT_TYPES = PPTX_MIME_TYPES
+WORD_TYPES = WORD_MIME_TYPES
+SPREADSHEET_TYPES = SPREADSHEET_MIME_TYPES
diff --git a/electron/servers/fastapi/services/document_conversion_service.py b/electron/servers/fastapi/services/document_conversion_service.py
new file mode 100644
index 00000000..497f12ec
--- /dev/null
+++ b/electron/servers/fastapi/services/document_conversion_service.py
@@ -0,0 +1,165 @@
+import os
+import subprocess
+from pathlib import Path
+from typing import Dict, List
+
+
+class DocumentConversionError(Exception):
+    pass
+
+
+def _windows_hidden_subprocess_kwargs() -> Dict[str, object]:
+    if os.name != "nt":
+        return {}
+
+    startupinfo = subprocess.STARTUPINFO()
+    startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
+    return {
+        "creationflags": getattr(subprocess, "CREATE_NO_WINDOW", 0),
+        "startupinfo": startupinfo,
+    }
+
+
+class DocumentConversionService:
+    def __init__(self):
+        self.soffice_binary = self._resolve_soffice_binary()
+        self.imagemagick_binary = self._resolve_imagemagick_binary()
+
+    @staticmethod
+    def _resolve_soffice_binary() -> str:
+        configured = (os.getenv("SOFFICE_PATH") or "").strip()
+        if configured:
+            return configured
+        return "soffice.exe" if os.name == "nt" else "soffice"
+
+    @staticmethod
+    def _can_execute(command: str, args: List[str]) -> bool:
+        try:
+            result = subprocess.run(
+                [command, *args],
+                capture_output=True,
+                text=True,
+                timeout=10,
+                check=False,
+                **_windows_hidden_subprocess_kwargs(),
+            )
+            return result.returncode == 0
+        except Exception:
+            return False
+
+    def _resolve_imagemagick_binary(self) -> str:
+        configured = (os.getenv("IMAGEMAGICK_BINARY") or "").strip()
+        if configured:
+            return configured
+
+        for candidate in ["magick", "convert"]:
+            if self._can_execute(candidate, ["-version"]):
+                return candidate
+
+        return "magick" if os.name == "nt" else "convert"
+
+    def convert_office_to_pdf(
+        self,
+        file_path: str,
+        output_dir: str,
+        timeout_seconds: int = 180,
+    ) -> str:
+        Path(output_dir).mkdir(parents=True, exist_ok=True)
+
+        existing_pdfs = {
+            p.name for p in Path(output_dir).glob("*.pdf") if p.is_file()
+        }
+
+        try:
+            subprocess.run(
+                [
+                    self.soffice_binary,
+                    "--headless",
+                    "--convert-to",
+                    "pdf",
+                    "--outdir",
+                    output_dir,
+                    file_path,
+                ],
+                check=True,
+                capture_output=True,
+                text=True,
+                timeout=timeout_seconds,
+                **_windows_hidden_subprocess_kwargs(),
+            )
+        except subprocess.TimeoutExpired as exc:
+            raise DocumentConversionError(
+                f"LibreOffice conversion timed out for {os.path.basename(file_path)}"
+            ) from exc
+        except subprocess.CalledProcessError as exc:
+            stderr = (exc.stderr or "").strip()
+            stdout = (exc.stdout or "").strip()
+            details = stderr or stdout or str(exc)
+            raise DocumentConversionError(
+                f"LibreOffice conversion failed for {os.path.basename(file_path)}: {details}"
+            ) from exc
+        except Exception as exc:
+            raise DocumentConversionError(
+                f"LibreOffice conversion failed for {os.path.basename(file_path)}: {exc}"
+            ) from exc
+
+        expected_pdf = Path(output_dir) / f"{Path(file_path).stem}.pdf"
+        if expected_pdf.is_file():
+            return str(expected_pdf)
+
+        generated_pdfs = [
+            p
+            for p in Path(output_dir).glob("*.pdf")
+            if p.is_file() and p.name not in existing_pdfs
+        ]
+        if generated_pdfs:
+            newest = max(generated_pdfs, key=lambda p: p.stat().st_mtime)
+            return str(newest)
+
+        raise DocumentConversionError(
+            f"LibreOffice did not create a PDF for {os.path.basename(file_path)}"
+        )
+
+    def convert_image_to_png(
+        self,
+        file_path: str,
+        output_dir: str,
+        timeout_seconds: int = 120,
+    ) -> str:
+        Path(output_dir).mkdir(parents=True, exist_ok=True)
+
+        output_path = Path(output_dir) / f"{Path(file_path).stem}_converted.png"
+
+        command = [self.imagemagick_binary, file_path, str(output_path)]
+
+        try:
+            subprocess.run(
+                command,
+                check=True,
+                capture_output=True,
+                text=True,
+                timeout=timeout_seconds,
+                **_windows_hidden_subprocess_kwargs(),
+            )
+        except subprocess.TimeoutExpired as exc:
+            raise DocumentConversionError(
+                f"ImageMagick conversion timed out for {os.path.basename(file_path)}"
+            ) from exc
+        except subprocess.CalledProcessError as exc:
+            stderr = (exc.stderr or "").strip()
+            stdout = (exc.stdout or "").strip()
+            details = stderr or stdout or str(exc)
+            raise DocumentConversionError(
+                f"ImageMagick conversion failed for {os.path.basename(file_path)}: {details}"
+            ) from exc
+        except Exception as exc:
+            raise DocumentConversionError(
+                f"ImageMagick conversion failed for {os.path.basename(file_path)}: {exc}"
+            ) from exc
+
+        if not output_path.is_file():
+            raise DocumentConversionError(
+                f"ImageMagick did not create a PNG for {os.path.basename(file_path)}"
+            )
+
+        return str(output_path)
diff --git a/electron/servers/fastapi/services/documents_loader.py b/electron/servers/fastapi/services/documents_loader.py
index f9bc6b23..6dbc3f5c 100644
--- a/electron/servers/fastapi/services/documents_loader.py
+++ b/electron/servers/fastapi/services/documents_loader.py
@@ -1,15 +1,21 @@
-import mimetypes
-from fastapi import HTTPException
-import os, asyncio
+import asyncio
+import os
+import tempfile
+from pathlib import Path
 from typing import List, Optional, Tuple
 
 import pdfplumber
+from fastapi import HTTPException
+
 from constants.documents import (
-    IMAGE_MIME_TYPES,
-    PDF_MIME_TYPES,
-    POWERPOINT_TYPES,
-    TEXT_MIME_TYPES,
-    WORD_TYPES,
+    IMAGE_EXTENSIONS,
+    OFFICE_EXTENSIONS,
+    PDF_EXTENSIONS,
+    TEXT_EXTENSIONS,
+)
+from services.document_conversion_service import (
+    DocumentConversionError,
+    DocumentConversionService,
 )
 from services.liteparse_service import LiteParseError, LiteParseService
 from utils.ocr_language import presentation_language_to_ocr_code
@@ -31,6 +37,7 @@ class DocumentsLoader:
         self._file_paths = file_paths
         self._ocr_language = presentation_language_to_ocr_code(presentation_language)
         self.liteparse_service = LiteParseService()
+        self.document_conversion_service = DocumentConversionService()
         self.document_service = DocumentService() if DocumentService is not None else None
 
         self._documents: List[str] = []
@@ -53,7 +60,7 @@ class DocumentsLoader:
         """If load_images is True, temp_dir must be provided"""
 
         documents: List[str] = []
-        images: List[str] = []
+        images: List[List[str]] = []
 
         for file_path in self._file_paths:
             if not os.path.exists(file_path):
@@ -64,19 +71,28 @@ class DocumentsLoader:
             document = ""
             imgs = []
 
-            mime_type = mimetypes.guess_type(file_path)[0]
-            if mime_type in PDF_MIME_TYPES:
+            extension = Path(file_path).suffix.lower()
+
+            if extension in PDF_EXTENSIONS:
                 document, imgs = await self.load_pdf(
                     file_path, load_text, load_images, temp_dir
                 )
-            elif mime_type in TEXT_MIME_TYPES:
+            elif extension in TEXT_EXTENSIONS:
                 document = await self.load_text(file_path)
-            elif mime_type in POWERPOINT_TYPES:
-                document = self.load_powerpoint(file_path)
-            elif mime_type in WORD_TYPES:
-                document = self.load_msword(file_path)
-            elif mime_type in IMAGE_MIME_TYPES:
-                document = self.load_image(file_path)
+            elif extension in OFFICE_EXTENSIONS:
+                document = await asyncio.to_thread(
+                    self.load_office_document,
+                    file_path,
+                    temp_dir,
+                )
+            elif extension in IMAGE_EXTENSIONS:
+                document = await asyncio.to_thread(
+                    self.load_image,
+                    file_path,
+                    temp_dir,
+                )
+            else:
+                document = await asyncio.to_thread(self._parse_with_liteparse, file_path)
 
             documents.append(document)
             images.append(imgs)
@@ -106,14 +122,35 @@ class DocumentsLoader:
         with open(file_path, "r", encoding="utf-8") as file:
             return await asyncio.to_thread(file.read)
 
-    def load_msword(self, file_path: str) -> str:
-        return self._parse_with_liteparse(file_path)
+    def load_office_document(self, file_path: str, temp_dir: Optional[str] = None) -> str:
+        if temp_dir:
+            converted_path = self.document_conversion_service.convert_office_to_pdf(
+                file_path,
+                temp_dir,
+            )
+            return self._parse_with_liteparse(converted_path)
 
-    def load_powerpoint(self, file_path: str) -> str:
-        return self._parse_with_liteparse(file_path)
+        with tempfile.TemporaryDirectory(prefix="office-convert-") as conversion_dir:
+            converted_path = self.document_conversion_service.convert_office_to_pdf(
+                file_path,
+                conversion_dir,
+            )
+            return self._parse_with_liteparse(converted_path)
 
-    def load_image(self, file_path: str) -> str:
-        return self._parse_with_liteparse(file_path)
+    def load_image(self, file_path: str, temp_dir: Optional[str] = None) -> str:
+        if temp_dir:
+            converted_path = self.document_conversion_service.convert_image_to_png(
+                file_path,
+                temp_dir,
+            )
+            return self._parse_with_liteparse(converted_path)
+
+        with tempfile.TemporaryDirectory(prefix="image-convert-") as conversion_dir:
+            converted_path = self.document_conversion_service.convert_image_to_png(
+                file_path,
+                conversion_dir,
+            )
+            return self._parse_with_liteparse(converted_path)
 
     def _parse_with_liteparse(self, file_path: str) -> str:
         try:
@@ -122,7 +159,7 @@ class DocumentsLoader:
                 ocr_enabled=True,
                 ocr_language=self._ocr_language,
             )
-        except LiteParseError as exc:
+        except (LiteParseError, DocumentConversionError) as exc:
             if self.document_service is not None:
                 try:
                     return self.document_service.parse_to_markdown(file_path)
diff --git a/electron/servers/fastapi/utils/validators.py b/electron/servers/fastapi/utils/validators.py
index 6b405ccf..37e56209 100644
--- a/electron/servers/fastapi/utils/validators.py
+++ b/electron/servers/fastapi/utils/validators.py
@@ -1,9 +1,25 @@
+from pathlib import Path
 from typing import List
 from fastapi import HTTPException
 
 from fastapi import UploadFile
 
 
+def _is_accepted_file_type(file: UploadFile, accepted_types: List[str]) -> bool:
+    accepted_mime_types = {t.lower() for t in accepted_types if not t.startswith(".")}
+    accepted_extensions = {t.lower() for t in accepted_types if t.startswith(".")}
+
+    content_type = (file.content_type or "").strip().lower()
+    if content_type in accepted_mime_types:
+        return True
+
+    extension = Path(file.filename or "").suffix.lower()
+    if extension in accepted_extensions:
+        return True
+
+    return False
+
+
 def validate_files(
     field,
     nullable: bool,
@@ -15,12 +31,14 @@ def validate_files(
     if field:
         files: List[UploadFile] = field if multiple else [field]
         for each_file in files:
-            if (max_size * 1024 * 1024) < each_file.size:
+            file_size = each_file.size or 0
+
+            if (max_size * 1024 * 1024) < file_size:
                 raise HTTPException(
                     400,
                     detail=f"File '{each_file.filename}' exceeded max upload size of {max_size} MB",
                 )
-            elif each_file.content_type not in accepted_types:
+            elif not _is_accepted_file_type(each_file, accepted_types):
                 raise HTTPException(
                     400,
                     detail=f"File '{each_file.filename}' not accepted. Accepted types: {accepted_types}",
diff --git a/electron/servers/nextjs/app/(presentation-generator)/upload/components/SupportingDoc.tsx b/electron/servers/nextjs/app/(presentation-generator)/upload/components/SupportingDoc.tsx
index dcf5b5c8..a9710c83 100644
--- a/electron/servers/nextjs/app/(presentation-generator)/upload/components/SupportingDoc.tsx
+++ b/electron/servers/nextjs/app/(presentation-generator)/upload/components/SupportingDoc.tsx
@@ -13,37 +13,50 @@ interface SupportingDocProps {
 
 const PDF_TYPES = ['.pdf']
 const TEXT_TYPES = ['.txt']
-const POWERPOINT_TYPES = ['.pptx']
-const WORD_TYPES = ['.docx']
+const WORD_TYPES = ['.doc', '.docx', '.docm', '.odt', '.rtf']
+const POWERPOINT_TYPES = ['.ppt', '.pptx', '.pptm', '.odp']
+const SPREADSHEET_TYPES = ['.xls', '.xlsx', '.xlsm', '.ods', '.csv', '.tsv']
+const IMAGE_TYPES = ['.jpg', '.jpeg', '.png', '.gif', '.bmp', '.tiff', '.webp', '.svg']
 
-const ACCEPT_DEFAULT = [
-    'application/pdf',
-    'text/plain',
-    'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
-    'application/vnd.openxmlformats-officedocument.presentationml.presentation',
-    ...PDF_TYPES,
-    ...TEXT_TYPES,
-    ...POWERPOINT_TYPES,
-    ...WORD_TYPES,
-].join(',')
-const ALLOWED_MIME_PREFIXES: string[] = []
+const ALLOWED_MIME_PREFIXES: string[] = ['image/']
 const ALLOWED_MIME_TYPES = [
     'application/pdf',
-    'application/x-pdf',
-    'application/acrobat',
-    'applications/pdf',
-    'text/pdf',
-    'application/vnd.pdf',
     'text/plain',
+    'text/csv',
+    'application/csv',
+    'text/tab-separated-values',
+    'text/tsv',
+    'application/msword',
     'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+    'application/vnd.ms-word.document.macroenabled.12',
+    'application/vnd.oasis.opendocument.text',
+    'application/rtf',
+    'text/rtf',
+    'application/vnd.ms-powerpoint',
     'application/vnd.openxmlformats-officedocument.presentationml.presentation',
+    'application/vnd.ms-powerpoint.presentation.macroenabled.12',
+    'application/vnd.oasis.opendocument.presentation',
+    'application/vnd.ms-excel',
+    'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+    'application/vnd.ms-excel.sheet.macroenabled.12',
+    'application/vnd.oasis.opendocument.spreadsheet',
+    'image/jpeg',
+    'image/png',
+    'image/gif',
+    'image/bmp',
+    'image/tiff',
+    'image/webp',
+    'image/svg+xml',
 ]
 const ALLOWED_EXTENSIONS = [
     ...PDF_TYPES,
     ...TEXT_TYPES,
-    ...POWERPOINT_TYPES,
     ...WORD_TYPES,
+    ...POWERPOINT_TYPES,
+    ...SPREADSHEET_TYPES,
+    ...IMAGE_TYPES,
 ]
+const ACCEPT_DEFAULT = [...ALLOWED_MIME_TYPES, ...ALLOWED_EXTENSIONS].join(',')
 
 const SupportingDoc = ({
     files,
@@ -75,7 +88,7 @@ const SupportingDoc = ({
         const disallowed = filesToReview.filter((file) => !isAllowedFile(file))
         if (disallowed.length > 0) {
             toast.error('Some files are not supported', {
-                description: 'Only PDF, TXT, PPTX, and DOCX files are allowed.',
+                description: 'Supported: Word, PowerPoint, spreadsheets, PDF/TXT, and image files.',
             })
         }
     }
@@ -171,7 +184,7 @@ const SupportingDoc = ({
                 <div className="flex flex-col items-center gap-2">
                     <Paperclip className="h-6 w-6 text-[#5146E5]" />
                     <p className="text-sm font-medium text-gray-800 font-syne">
-                        Drag and drop PDF, TXT, PPTX, DOCX, or <span className="text-[#5146E5]">click to browse</span>
+                        Drag and drop Office docs, spreadsheets, images, PDF/TXT, or <span className="text-[#5146E5]">click to browse</span>
                     </p>
                 </div>
             </label>
@@ -214,7 +227,7 @@ const SupportingDoc = ({
                     </ul>
                     {filteredFiles.length !== files.length && (
                         <p className="mt-2 text-xs text-amber-600 font-syne">
-                            Some files were skipped. Only PDF, TXT, PPTX, and DOCX files are supported.
+                            Some files were skipped. Supported: Word, PowerPoint, spreadsheets, PDF/TXT, and image files.
                         </p>
                     )}
                 </div>

From 691d0f62e86239dc76c9002e000be73d9f724863 Mon Sep 17 00:00:00 2001
From: sudipnext <parajulisudip123@outlook.com>
Date: Mon, 30 Mar 2026 20:21:15 +0545
Subject: [PATCH 3/3] feat: enhance ImageMagick installation process and update
 documentation

- Added functions to resolve Homebrew and Linux escalation commands for ImageMagick installation.
- Improved error handling and logging for manual installation steps.
- Updated download URLs for ImageMagick based on the platform.
- Enhanced user interface messages to clarify installation steps for different operating systems.
- Adjusted CPU worker count in document extraction for better performance.
---
 electron/.gitignore                           |  9 ++-
 electron/app/ipc/setup_install_handlers.ts    | 77 ++++++++++++++++---
 electron/app/utils/imagemagick-check.ts       | 28 ++++++-
 .../document-extraction/liteparse_runner.mjs  |  2 +-
 .../resources/ui/setup-installer/index.html   | 15 +++-
 5 files changed, 115 insertions(+), 16 deletions(-)

diff --git a/electron/.gitignore b/electron/.gitignore
index bd040a77..588efb1a 100644
--- a/electron/.gitignore
+++ b/electron/.gitignore
@@ -21,6 +21,13 @@ app_dist
 resources/fastapi
 resources/nextjs
 dist
+eng.traineddata
+servers/fastapi/build/
+servers/fastapi/dist/
 servers/fastapi/fastembed_cache/
 electron/.cache/
-electron/.cache/export-runtime/
\ No newline at end of file
+electron/.cache/export-runtime/
+*.pkg
+*.toc
+*.zip
+*.pyc
\ No newline at end of file
diff --git a/electron/app/ipc/setup_install_handlers.ts b/electron/app/ipc/setup_install_handlers.ts
index 29ddb454..3ffa345b 100644
--- a/electron/app/ipc/setup_install_handlers.ts
+++ b/electron/app/ipc/setup_install_handlers.ts
@@ -20,6 +20,7 @@ import {
 import { getSetupStatus } from "../utils/setup-dependencies";
 import {
   getImageMagickDownloadUrl,
+  getImageMagickManualInstallCommands,
   isImageMagickInstalled,
 } from "../utils/imagemagick-check";
 
@@ -72,6 +73,33 @@ function commandExists(command: string, versionArgs: string[] = ["--version"]):
   return result.status === 0;
 }
 
+function resolveBrewCommand(): string | null {
+  if (commandExists("brew")) {
+    return "brew";
+  }
+
+  const candidates = ["/opt/homebrew/bin/brew", "/usr/local/bin/brew"];
+  for (const candidate of candidates) {
+    if (fs.existsSync(candidate)) {
+      return candidate;
+    }
+  }
+  return null;
+}
+
+function resolveLinuxEscalationCommand(): string | null {
+  if (commandExists("pkexec", ["--version"])) return "pkexec";
+  if (commandExists("sudo", ["-V"])) return "sudo";
+  return null;
+}
+
+function logManualImageMagickCommands(wc: WebContents) {
+  for (const line of getImageMagickManualInstallCommands()) {
+    const level = line.endsWith(":") ? "info" : "cmd";
+    sendImageMagickLog(wc, level, line);
+  }
+}
+
 function runInstallCommand(
   wc: WebContents,
   command: string,
@@ -210,7 +238,18 @@ export function setupSetupInstallHandlers() {
 
         if (process.platform === "linux") {
           if (commandExists("apt-get")) {
-            await runInstallCommand(wc, "pkexec", [
+            const escalator = resolveLinuxEscalationCommand();
+            if (!escalator) {
+              throw new Error(
+                "Neither pkexec nor sudo is available to run apt-get install."
+              );
+            }
+
+            await runInstallCommand(wc, escalator, [
+              "apt-get",
+              "update",
+            ]);
+            await runInstallCommand(wc, escalator, [
               "apt-get",
               "install",
               "-y",
@@ -218,17 +257,30 @@ export function setupSetupInstallHandlers() {
             ]);
           } else {
             throw new Error(
-              "apt-get is unavailable. Install ImageMagick manually from the official download page."
+              "apt-get is unavailable. Install ImageMagick manually using your package manager."
             );
           }
         } else if (process.platform === "darwin") {
-          if (commandExists("brew")) {
-            await runInstallCommand(wc, "brew", ["install", "imagemagick"]);
-          } else {
+          let brewCommand = resolveBrewCommand();
+          if (!brewCommand) {
+            sendImageMagickLog(
+              wc,
+              "info",
+              "Homebrew not found. Installing Homebrew first..."
+            );
+            const installHomebrewCommand =
+              'NONINTERACTIVE=1 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"';
+            await runInstallCommand(wc, "/bin/bash", ["-c", installHomebrewCommand]);
+            brewCommand = resolveBrewCommand();
+          }
+
+          if (!brewCommand) {
             throw new Error(
-              "Homebrew is not installed. Install ImageMagick manually from the official download page."
+              "Homebrew installation completed, but brew was not found on PATH."
             );
           }
+
+          await runInstallCommand(wc, brewCommand, ["install", "imagemagick"]);
         } else if (process.platform === "win32") {
           if (commandExists("choco", ["-v"])) {
             await runInstallCommand(wc, "choco", [
@@ -238,7 +290,7 @@ export function setupSetupInstallHandlers() {
             ]);
           } else {
             throw new Error(
-              "Chocolatey is not installed. Install ImageMagick manually from the official download page."
+              "Chocolatey is not installed. Falling back to direct installer download."
             );
           }
         } else {
@@ -253,14 +305,21 @@ export function setupSetupInstallHandlers() {
         const message =
           error instanceof Error ? error.message : "ImageMagick install failed";
         sendImageMagickLog(wc, "error", message);
+        logManualImageMagickCommands(wc);
         const downloadUrl = getImageMagickDownloadUrl();
         sendImageMagickLog(
           wc,
           "info",
-          `Falling back to manual install page: ${downloadUrl}`
+          `Opening manual install link: ${downloadUrl}`
         );
         await shell.openExternal(downloadUrl);
-        return { ok: true };
+        sendImageMagickProgress(
+          wc,
+          "error",
+          undefined,
+          "Finish manual installation, then click Retry."
+        );
+        return { ok: false, error: message };
       }
     }
   );
diff --git a/electron/app/utils/imagemagick-check.ts b/electron/app/utils/imagemagick-check.ts
index 6495c7f8..38d01be5 100644
--- a/electron/app/utils/imagemagick-check.ts
+++ b/electron/app/utils/imagemagick-check.ts
@@ -18,10 +18,34 @@ export function isImageMagickInstalled(): boolean {
 
 export function getImageMagickDownloadUrl(): string {
   if (process.platform === "win32") {
-    return "https://imagemagick.org/script/download.php#windows";
+    return "https://imagemagick.org/archive/binaries/ImageMagick-7.1.2-18-Q16-HDRI-x64-dll.exe";
   }
   if (process.platform === "darwin") {
-    return "https://imagemagick.org/script/download.php#macosx";
+    return "https://brew.sh/";
   }
   return "https://imagemagick.org/script/download.php#linux";
 }
+
+export function getImageMagickManualInstallCommands(): string[] {
+  if (process.platform === "win32") {
+    return [
+      "Download and run the installer:",
+      getImageMagickDownloadUrl(),
+    ];
+  }
+
+  if (process.platform === "darwin") {
+    return [
+      "Install Homebrew:",
+      '/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"',
+      "Install ImageMagick:",
+      "brew install imagemagick",
+    ];
+  }
+
+  return [
+    "Install ImageMagick:",
+    "sudo apt-get update",
+    "sudo apt-get install -y imagemagick",
+  ];
+}
diff --git a/electron/resources/document-extraction/liteparse_runner.mjs b/electron/resources/document-extraction/liteparse_runner.mjs
index 6793610a..d7b68195 100644
--- a/electron/resources/document-extraction/liteparse_runner.mjs
+++ b/electron/resources/document-extraction/liteparse_runner.mjs
@@ -70,7 +70,7 @@ const ocrEnabled = parseBool(readArg("--ocr-enabled"), true);
 const dpi = toNumber(readArg("--dpi"), 150, 72, 600);
 const numWorkers = toNumber(
   readArg("--num-workers"),
-  Math.max(os.cpus().length - 4, 1),
+  Math.max(os.cpus().length - 2, 1),
   1,
   64
 );
diff --git a/electron/resources/ui/setup-installer/index.html b/electron/resources/ui/setup-installer/index.html
index 5ff1397b..2d871226 100644
--- a/electron/resources/ui/setup-installer/index.html
+++ b/electron/resources/ui/setup-installer/index.html
@@ -288,7 +288,7 @@
           ? '<strong>Presenton</strong> uses LibreOffice to generate custom templates from PPTX files.'
           : step === 'chrome'
           ? '<strong>Presenton</strong> uses Chromium for export and slide rendering. Download it now (~150 MB).'
-          : '<strong>Presenton</strong> uses ImageMagick for OCR/document conversion support. We will try automatic installation first, then open the download page if package manager tools are unavailable.';
+          : '<strong>Presenton</strong> uses ImageMagick for OCR/document conversion support. Linux uses apt, macOS installs Homebrew first (if needed) and then runs brew install imagemagick, and Windows uses Chocolatey with a direct installer fallback.';
       document.getElementById('btn-install').onclick = () => startInstall(step);
       document.getElementById('btn-skip').onclick = () => handleSkip();
       showState('prompt');
@@ -315,8 +315,17 @@
         });
       } else {
         document.getElementById('dl-heading').textContent = 'Installing ImageMagick';
-        document.getElementById('dl-phase').textContent = 'Automatic install (apt/brew/choco) with fallback to manual download';
-        window.setupInstaller.installImageMagick().then(() => {
+        document.getElementById('dl-phase').textContent = 'Linux: apt-get | macOS: Homebrew + brew install | Windows: choco or direct installer';
+        window.setupInstaller.installImageMagick().then((installResult) => {
+          if (!installResult || !installResult.ok) {
+            if (currentStep !== 'imagemagick') return;
+            document.getElementById('err-msg').textContent = installResult?.error || 'ImageMagick installation needs manual completion. Follow the shown commands and then click Retry.';
+            showState('error');
+            document.getElementById('btn-retry').onclick = () => startInstall('imagemagick');
+            document.getElementById('btn-skip-error').onclick = () => nextOrDone();
+            return;
+          }
+
           window.setupInstaller.checkImageMagick().then(res => {
             if (!res.ok && currentStep === 'imagemagick') {
               document.getElementById('err-msg').textContent = res.error || 'ImageMagick is not installed yet.';