PDFRookie
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Protect PDF

Lock a PDF with a password using AES-256 encryption.

Runs in your browser — files never leave your device

Choose a PDF

Drag and drop here, or click to browse

How it works

  1. 1

    Choose a PDF.

  2. 2

    Enter a password.

  3. 3

    Download the encrypted PDF.

Frequently asked questions

How strong is the encryption?

AES-256, the standard used by modern PDF viewers.

What if I forget the password?

It can't be recovered. Keep the password somewhere safe.

Are my files uploaded anywhere?

No. This tool runs entirely in your browser. Your files never leave your device and nothing is stored.

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