Protect PDF

Encrypt a PDF with AES-256 and a password, entirely in your browser. Optionally set an owner password and permissions.

Processed on your device · nothing uploadedAES-256 encryption

Drag & drop PDF files here

Or click to select files from your computer

100% Client-Side

Privacy architecture

Encryption runs locally with @cantoo/pdf-lib (AES-256). Your password and document are never sent anywhere — there is no recovery if you forget the password.

Zero-upload guarantee