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Tools/Encrypt

Encrypt with password

Set a password to open the document. The output uses a fixed, disclosed scheme — AES-256 by default, AES-128 as the option.

Load a PDF to encrypt

Drop a PDF here, or pick from your device. Files never leave this tab.

PDF · stays on this device

Local workflow guide

How to password-protect a PDF

Protect a PDF with AES-256 or AES-128 password encryption.

  1. 01Add the PDF you want to protect.
  2. 02Enter the user password, optionally set an owner password, and choose the encryption scheme.
  3. 03Encrypt the document and download the protected PDF.