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Protect PDF

Add AES-256 encryption with a new open password.

Edit text — freeFill forms — freeAdd signature — free
Free to use · No payment · No sign-up

Protect PDF

Add AES-256 encryption with a new open password.

    Your original file remains unchanged. Check the exported result before using it.

    This tool temporarily uploads your file to the AK Software Labs VPS over HTTPS. Job files are removed on completion or failure. No third-party document service is used.

    Editing can invalidate existing digital signatures. Keep the original.

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    Continue your PDF workflow

    Need a text correction? Open the free FreePDFTools PDF editor. For an application, fill form fields, then add your signature. Read our font-matching guide before replacing text.

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