Password Protect PDF

Password protect a PDF with strong AES encryption.

Click to select PDF or drag and drop

Your files never leave your device.

About Password Protect PDF

Password Protect PDF encrypts your document so it can be opened only with the password. You can also restrict printing, copying and editing.

How to use it

Select your PDF, or drag it onto the drop area.
Enter a strong password and choose permissions.
Encrypt and download.

Your file stays on your device

This tool runs entirely in your browser. Your file is read from your device, processed in memory, and saved back to your device — it is never uploaded to Qpdf or anyone else. Once this page has loaded, the tool also works with your internet connection switched off.

How Qpdf keeps files private →

Good to know

There is no way to recover a forgotten password. Store it safely.
Send the password through a different channel than the file.
Permission restrictions are honoured by most readers but are not a strong security control on their own.

Related tools

All tools →

Unlock PDF Remove a password you know from a PDF.

Change Permissions Set printing, copying and editing permissions.

Redact PDF Permanently remove sensitive text and areas.

Remove PDF Metadata Strip author, software and other hidden properties.