How to use Protect PDF
- Choose the PDF you want to protect.
- Type a password twice and pick what people may do with the file.
- Press Protect PDF and download the locked file.
Encryption that happens on your device
Your password and your document never leave your browser, which makes this safer than tools that upload files to add protection. Anyone opening the PDF must type the password. Write it down, because a forgotten password can't be recovered by anyone.
Private by design
Protect PDF runs entirely in your browser. Your file is processed on your own device and is never uploaded to a server, there's no sign-up, and the result is ready to download as soon as it's done.
Questions
What happens if I forget the password?
Nobody can open the file, including us. Keep the password somewhere safe.
Can I stop people printing or copying?
Yes. Untick Print or Copy text. Most PDF viewers respect these settings.
Can I remove the password later?
Yes. Use Unlock PDF with the password.