Choose a PDF to protect
Drag & drop here, or click to choose a file
Please read first: on first use this tool downloads a small PDF security engine (about 1.5 MB) to your device. Your file and your password are processed on your own device — they are never uploaded or stored anywhere. If you forget the password, the file cannot be opened again — keep it somewhere safe.
Download protected PDF
The password is asked for every time the protected file is opened, in any PDF viewer.