Protect PDF
Add a password to your PDF. The file will open only after entering the password.
About Protect PDF
Adding a password to a PDF keeps it from being opened by anyone who doesn’t have the password. Our protect PDF tool lets you upload a PDF, set a password, and download a protected copy. Processing is done in your browser so your file stays private. No account needed. A simple way to password-protect a PDF.
Upload a PDF and set a password. The downloaded file will open only after entering the password. Processing runs in your browser — your file is not uploaded to any server.
How to use Protect PDF
Upload a PDF, set a password, and download. The downloaded PDF will ask for the password when opened.
Related guides for Protect PDF
Pro tips for Protect PDF
- Upload a PDF, set a password, and download.
- All processing runs in your browser—your input is not uploaded to our servers.
- Bookmark this page if you use this tool often.
FAQs about Protect PDF
What does password protection do?
It encrypts the PDF so that anyone who opens it must enter the password you set.
Can I set different permissions?
This tool focuses on open password. Some tools also support permission passwords (e.g. no printing); check the options.
Is my PDF uploaded?
No. With this tool, processing runs in your browser; your file doesn’t leave your device.