Military-Grade PDF Encryption

AES-256 is the gold standard for data encryption. With current technology, it would take billions of years to brute-force a 256-bit key. The U.S. government uses it to protect TOP SECRET documents. Our implementation is FIPS 140-2 compliant and uses the Web Crypto API for maximum security.

Nowhere. This is 100% client-side software. Your PDF never leaves your computer. All encryption and processing happens locally in your browser. This is the zero-knowledge architecture that enterprise security teams demand.

Owner Password (Master Key): Full control over the document. Can change permissions, remove security, and access all features.

User Password (Restricted): Optional password for recipients. Their access is limited by the permissions you set (print, copy, edit, etc.).

No artificial limits. We recommend files under 500MB for optimal performance in browser memory. Since everything runs locally, the limit depends on your device's available RAM. 1000+ page documents work perfectly.