secure

Protect PDF

Encrypt with a password

Ready

Full AES-256 password encryption ships with our WASM crypto module in Phase 2. Today this tool normalizes and prepares your PDF locally.

Drop a PDF here, or browse

Files stay on your device. Nothing is uploaded.

About Protect PDF

Lock a PDF with a strong password. Encryption happens on your device — we never see your files.

Local

Runs entirely on your device.

Free

No account, no watermarks.

Fast

Native-speed processing.