Security
Protect PDF
Lock a PDF with a password using AES-256 encryption (opens in current readers).
How it works
- Drop a PDF.
- Enter a password twice.
- Download the locked PDF.
Good to know
- Uses AES-256 encryption (PDF 2.0). Current readers open it; very old ones may not. The file is only as safe as the password, so choose a long one.
- Free with no limits, accounts or watermarks. Files are processed in your browser and never uploaded.
Questions
Is the password stored anywhere?
No. Nothing leaves your device and the password is not saved.