Secure Your PDFs with AES Encryption
When sending sensitive documents via email or storing them on shared drives, you must ensure they cannot be opened by unauthorized parties. FileForge allows you to encrypt your PDFs with military-grade AES encryption directly in your web browser.
How to Password Protect a PDF
Drop your PDF into the tool and define a strong password. Our cryptographic engine will rewrite the file, encrypting the internal streams and objects. Once encrypted, the file will be completely unreadable to anyone who does not possess the exact password.
Zero-Knowledge Security
Because the encryption happens locally on your device using the Web Crypto API, FileForge operates on a zero-knowledge basis. We never see your document, and we never see the password you use to secure it. It is the ultimate privacy solution.
Frequently Asked Questions
We utilize standard 128-bit or 256-bit AES encryption, which is compatible with all modern PDF readers like Adobe Acrobat.
No. Because the encryption happens on your device and we do not store your passwords, a forgotten password cannot be recovered.
Encryption adds a negligible amount of overhead (a few kilobytes at most), so your file size remains practically identical.