Protect PDF
Lock a PDF with a password before sending it by email or storing it in the cloud. Strong AES-256 encryption is used.
How to Protect PDF
- Choose or drop a PDF file.
- Enter a password twice.
- Click "Protect PDF" and download the locked file.
Frequently asked questions
How secure is it?
The PDF is encrypted with AES-256, the strongest standard PDF encryption. Choose a long password that is hard to guess.
What if I forget the password?
It cannot be recovered. Keep a copy of the original file or store the password somewhere safe.
Is my password sent anywhere?
No. Encryption happens in your browser. Neither your file nor your password leaves your device.
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