Protect PDF
Your file stays on your device. Encryption runs in your browser (no upload).
Note: This tool encrypts the PDF with a password (AES). You’ll need this password to open the PDF later.
Required. Use a strong password.
Must match exactly.
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Client-side estimate only.
Optional. If set, controls print/copy/edit permissions in many PDF readers.
Applies only if Owner password is set.
AES-256 recommended.
Info