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    Pdf watermark issue.
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    Posted by admin  · 08-02-2018 - 11:43

    Hello,

    It seems you are trying to change an encrypted document. Encrypted PDFs (as encrypted DOCX) can't be changed, as they are encrypted and they aren't readable PDFs but another kind of files (binary files with special containers). You need to decrypt the documents (knowing the password previously) before adding a watermark or doing any other change.

    Regards.