How to protect pdf
- 1 Upload the PDF you want to secure.
- 2 Set a password (and confirm it).
- 3 Download the password-protected PDF.
Private by design
Files are processed in your browser — they never leave your device.
Fast & free
No signup, no watermarks, no limits on how often you use it.
Works everywhere
Any modern browser on Windows, macOS, Linux, iOS or Android.