Organize

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Optimize & Convert

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Security

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Protect PDF

Encrypt a PDF with a password so only people you share it with can open it, using AES-256 encryption.

Frequently asked questions

Is Protect PDF free to use?

Yes, completely free with no signup, no watermarks, and no limit on how many times you use it.

Is my file safe?

Yes. Your file is processed on this server and deleted automatically right after — it's never uploaded to a third party or stored.