Tools / Protect PDF
Protect a PDF.
Add a password. Only people who know it can open the file.
Drop a PDF hereOne PDF
If you forget the password, nobody can open the file — not even us.
Runs in your browser. Your file never leaves your device.
How to use it
- Drop in the PDF.
- Type a password twice. Tick the box if people shouldn't print or copy it.
- Press Protect PDF. Keep the password somewhere safe.
Questions
What if I forget the password?
Nobody can open the file, not even us. Keep the password somewhere safe, and keep your original.
Will it open on phones and other computers?
Yes. It uses AES-256, a strong lock that every current PDF reader supports. They ask for the password.
Is my file uploaded anywhere?
No. Everything happens in your browser. The file never leaves your device.