Protect PDF
Add a password to a PDF.
How to use
- 1Choose a PDF file or drag and drop it into the box.
- 2Type a password and type it again to confirm.
- 3Optionally untick printing, copying or editing to restrict them.
- 4Click “Protect PDF” and download the locked file.
Frequently asked questions
How strong is the protection?
Files are encrypted with AES-256, the strongest standard PDF encryption. Use a long password that isn't easy to guess.
Is my PDF or password uploaded?
No. Encryption happens inside your browser, so neither the file nor the password is sent anywhere.
What if I forget the password?
It can't be recovered, by us or anyone else. Keep a copy of the original file or write the password down safely.
Will the PDF open on phones and in Adobe Reader?
Yes. Any modern PDF reader, including Chrome, Adobe Reader and phone apps, will ask for the password and open it.
Can I remove the password later?
Yes. Use our Unlock PDF tool and enter the password to save a copy without it.