Protect PDF
Add a password to a PDF so only people with the password can open it.
About Protect PDF
Encrypt a PDF with a password so it can only be opened by people who know it. The encryption is applied in your browser using strong, standard PDF security — your document and password are never uploaded to a server.
How to use
- 1
Upload the PDF you want to protect.
- 2
Enter a password and confirm it.
- 3
Click 'Protect & Download' to get the encrypted file.
- 4
Share the password separately with anyone who needs access.
Tip: All processing is performed locally in your browser with zero loss in quality and no upload limits.
Frequently Asked Questions
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