🔒 Protect PDF
Add a password to a PDF so only people with the password can open it.
Protect PDF — frequently asked questions
Is Protect PDF free?
Yes, Protect PDF is completely free — no signup, no watermark, no limits.
Do I need to create an account?
No, you can use it directly without logging in.
Is my file safe?
Your file is only uploaded to process it and is not stored afterwards.
Does it work on mobile?
Yes, it works in any browser on mobile or desktop — nothing to install.