Offline PDF Converter

Works offline.
Even at 30,000 ft.

After your first visit, PrivaPDF is fully cached. Convert PDFs on planes, in hospitals, or on air-gapped machines — no internet connection required.

Fully cached after first visit
Installable as a desktop/mobile app
All tools work with Wi-Fi off
Air-gap compatible
No background sync or telemetry
Patient & legal data stays local
Works offlineInstallable PWAAir-gap friendlyNo Wi-Fi neededHospitals & planes
privapdf.net/convert● SecurePDFcontract.pdf2.4 MBWASMYour browserlocalDOCXcontract.docx1.9 MBConverted in 1.8 s0 bytes sent to any serverSaveNO SERVER
Proof of Privacy

Don't trust us.
Verify it yourself.

Open DevTools → Network while converting. You'll see zero outbound requests. Every byte stays inside your browser tab.

HIPAA-compatible — no PHI leaves the device
Attorney–client privilege preserved by design
Air-gap friendly — works with Wi-Fi disabled
ZERO OUTBOUND CALLS
ElementsConsoleNetworkSources
FilterAll · XHR · JS · Wasm
NameStatusTypeSize
converter.worker.js200script48 kB
pdf.worker.wasm200wasm312 kB
✓ No requests to external servers
Powered byWebAssembly·Web Workers·pdf-lib·mammoth.js·Service WorkerAll open source · auditable in DevTools
FAQ

Common questions

How does it work offline?

PrivaPDF uses a Service Worker to cache itself after your first visit. On subsequent visits — even with no internet — the app loads and converts from cache.

Can I install it as an app?

Yes. Visit the site in Chrome or Edge, click the install icon in the address bar, and PrivaPDF lives in your dock or taskbar like a native app.

Does it work on air-gapped machines?

Yes, after the first visit. Once cached, PrivaPDF requires no network connection at all — ideal for secure or classified environments.

Which tools work offline?

All of them — PDF to Word, Word to PDF, merge, split, compress, unlock, lock, and sign all run fully in-browser with no network dependency.

Related tools
PDF to WordWord to PDFMerge PDFSecure PDF ConverterSign PDFAll PDF Tools