diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 8d90d9658..f788474bb 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -105,6 +105,7 @@
         "typescript": "^5.9.2",
         "typescript-eslint": "^8.44.1",
         "vite": "^7.1.7",
+        "vite-plugin-static-copy": "^3.1.4",
         "vite-tsconfig-paths": "^5.1.4",
         "vitest": "^3.2.4"
       }
@@ -11093,6 +11094,19 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/p-map": {
+      "version": "7.0.4",
+      "resolved": "https://registry.npmjs.org/p-map/-/p-map-7.0.4.tgz",
+      "integrity": "sha512-tkAQEw8ysMzmkhgw8k+1U/iPhWNhykKnSk4Rd5zLoPJCuJaGRPo6YposrZgaxHKzDHdDWWZvE/Sk7hsL2X/CpQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/pac-proxy-agent": {
       "version": "7.2.0",
       "resolved": "https://registry.npmjs.org/pac-proxy-agent/-/pac-proxy-agent-7.2.0.tgz",
@@ -14503,6 +14517,25 @@
         "url": "https://opencollective.com/vitest"
       }
     },
+    "node_modules/vite-plugin-static-copy": {
+      "version": "3.1.4",
+      "resolved": "https://registry.npmjs.org/vite-plugin-static-copy/-/vite-plugin-static-copy-3.1.4.tgz",
+      "integrity": "sha512-iCmr4GSw4eSnaB+G8zc2f4dxSuDjbkjwpuBLLGvQYR9IW7rnDzftnUjOH5p4RYR+d4GsiBqXRvzuFhs5bnzVyw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "chokidar": "^3.6.0",
+        "p-map": "^7.0.3",
+        "picocolors": "^1.1.1",
+        "tinyglobby": "^0.2.15"
+      },
+      "engines": {
+        "node": "^18.0.0 || >=20.0.0"
+      },
+      "peerDependencies": {
+        "vite": "^5.0.0 || ^6.0.0 || ^7.0.0"
+      }
+    },
     "node_modules/vite-tsconfig-paths": {
       "version": "5.1.4",
       "resolved": "https://registry.npmjs.org/vite-tsconfig-paths/-/vite-tsconfig-paths-5.1.4.tgz",
diff --git a/frontend/package.json b/frontend/package.json
index 5489f6b46..914b7bb1f 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -152,6 +152,7 @@
     "typescript": "^5.9.2",
     "typescript-eslint": "^8.44.1",
     "vite": "^7.1.7",
+    "vite-plugin-static-copy": "^3.1.4",
     "vite-tsconfig-paths": "^5.1.4",
     "vitest": "^3.2.4"
   },
diff --git a/frontend/src/core/components/viewer/LocalEmbedPDF.tsx b/frontend/src/core/components/viewer/LocalEmbedPDF.tsx
index 3e5fa5f1c..0b79604fd 100644
--- a/frontend/src/core/components/viewer/LocalEmbedPDF.tsx
+++ b/frontend/src/core/components/viewer/LocalEmbedPDF.tsx
@@ -46,6 +46,7 @@ import { PrintAPIBridge } from '@app/components/viewer/PrintAPIBridge';
 import { isPdfFile } from '@app/utils/fileUtils';
 import { useTranslation } from 'react-i18next';
 import { LinkLayer } from '@app/components/viewer/LinkLayer';
+import { absoluteWithBasePath } from '@app/constants/app';
 
 interface LocalEmbedPDFProps {
   file?: File | Blob;
@@ -167,8 +168,10 @@ export function LocalEmbedPDF({ file, url, enableAnnotations = false, onSignatur
     ];
   }, [pdfUrl]);
 
-  // Initialize the engine with the React hook
-  const { engine, isLoading, error } = usePdfiumEngine();
+  // Initialize the engine with the React hook - use local WASM for offline support
+  const { engine, isLoading, error } = usePdfiumEngine({
+    wasmUrl: absoluteWithBasePath('/pdfium/pdfium.wasm'),
+  });
 
 
   // Early return if no file or URL provided
diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
index 0eb35e94c..f8d52908d 100644
--- a/frontend/vite.config.ts
+++ b/frontend/vite.config.ts
@@ -1,6 +1,7 @@
 import { defineConfig } from 'vite';
 import react from '@vitejs/plugin-react-swc';
 import tsconfigPaths from 'vite-tsconfig-paths';
+import { viteStaticCopy } from 'vite-plugin-static-copy';
 
 export default defineConfig(({ mode }) => {
   // When DISABLE_ADDITIONAL_FEATURES is false (or unset), enable proprietary features
@@ -20,6 +21,15 @@ export default defineConfig(({ mode }) => {
       tsconfigPaths({
         projects: [tsconfigProject],
       }),
+      viteStaticCopy({
+        targets: [
+          {
+            //provides static pdfium so embedpdf can run without cdn
+            src: 'node_modules/@embedpdf/pdfium/dist/pdfium.wasm',
+            dest: 'pdfium'
+          }
+        ]
+      })
     ],
     server: {
       host: true,