Protect PDF
Add a password to your PDF so only people who know it can open the file. Free, with no sign-up, and your files stay in your browser.
How to use Protect PDF
- Choose or drop your PDF.
- Type a password and repeat it, then choose whether people may print, copy text or edit.
- Press Protect PDF and download the locked file.
Good to know
The file is encrypted with AES-256. Choose a strong password and keep it safe: it cannot be recovered and we cannot reset it. Permissions such as "no printing" are respected by most PDF programs, but the password is what truly protects the file.
Is it private?
Yes. The conversion happens on your device, so your file is not sent to our servers. See our Privacy Policy.