Password protect or unlock a PDF
Encrypt with a password, or remove one you know.
Your files never leave your device.
How to password protect a PDF
Add the PDF. If it already has a password, the tool offers to remove it instead.
Type a password twice and choose what others may do, such as print or copy.
Press “Protect PDF” and download the encrypted file.
Frequently asked questions
How strong is the protection?
Files are encrypted with AES-256, the standard used by current versions of Adobe Acrobat.
I forgot my password. Can you unlock the file?
No. Without the password the file can’t be opened, which is the point of the encryption. Keep your password somewhere safe.
Are my files uploaded to a server?
No. This tool runs entirely in your browser, so your files stay on your device and are never sent anywhere. It even works with the internet switched off.
Is it free, and are there limits?
It is currently free, with no sign-up, no daily limit on files and no watermark added to your results.