Password protect a PDF online
Add a password to a PDF so only the people you choose can open it. PlinyPDF encrypts the file with AES entirely in your browser.
Your password never leaves your device — we couldn’t store it if we wanted to.
Frequently asked questions
How strong is the encryption?
The PDF is encrypted with AES, applied entirely in your browser.
Do you store my password?
No. The password never leaves your device.
Can I remove a password later?
Yes — use the Remove Password tool if you know the current password.