Protect PDF with a Password

    Lock a PDF so it can only be opened with a password. The file is encrypted with AES-256 on your device; neither the PDF nor the password is ever sent to a server. Printing is allowed, copying and editing are blocked.

    How to use Protect PDF

    1. Choose your PDF.
    2. Type the password twice.
    3. Press Protect PDF and download the locked file.

    Why use DeevitHub PDF

    • AES-256 encryption
    • Done on your device – nothing uploaded
    • Works with Unicode passwords
    • Free

    Frequently asked questions

    What if I forget the password?

    It cannot be recovered. Keep a copy of the password.

    Which viewers open the file?

    Adobe Acrobat, Chrome, Edge, Firefox, Preview and most modern readers.

    Is it really encrypted?

    Yes. The content is encrypted with AES-256.

    Guides

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