Protect PDF
Encrypt a PDF with a password. Processed in your browser.
Protect PDF encrypts your document with AES-256 so a password is required to open it. Encryption runs entirely on your device.
Frequently Asked Questions
How strong is the encryption?
We use AES-256 via a browser PDF library. Remember your password — it cannot be recovered.
Do my files get uploaded?
No. Everything runs in your browser.