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Protect PDF

Add a 256-bit password to your PDF — private & free.

Quick answer

Password-protect PDFs with 256-bit AES encryption right in your browser. No uploads, no accounts, no limits — unlike paid tools that gate encryption behind subscriptions.

How to protect pdf

  1. 1

    Upload PDF

    Drop the PDF you want to secure.

  2. 2

    Set a password

    Type your password in Options.

  3. 3

    Download

    Get an encrypted PDF that needs the password to open.

Frequently asked questions

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