Free · no upload · no account
Password protect a PDF
Add a password that must be entered to open the PDF. Protection is applied in your browser, so neither your file nor your password is sent anywhere.
Open Protect PDFRuns in this browser tab. Your file never leaves your device.
How to use Protect PDF
- Open your PDF.
- Enter the password you want to require.
- Download the protected PDF.
Questions
Is Protect PDF free in PDFMoose?
Yes. It is free in PDFMoose, with no account, no watermark and no daily task limit.
Are my files uploaded when I password protect a PDF?
No. The work happens entirely in your browser, so your file stays on your device and is never uploaded.
What if I forget the password?
Keep it somewhere safe. PDFMoose cannot recover a forgotten password, and the unlock tool needs you to know it.