Adobe Acrobat password protection

[Ghostin]

I have an issue with some PDF manuals I have. I use them to program telephone and voice mail systems. I want to put some additional notes and highlight some of the text, but it prompts me for a master password. Does anyone know a backdoor password? If this is too sensitive to post publicly, I can give someone a URL to contact me.

Thanks,

Ghostin

 

[mlg4035]

Elcomsoft makes the "Advanced PDF Password Recovery" tool which can decrypt PDFs that have the 'owner' password set but not the 'user' password. The owner password prevents modification of a PDF file and the user password prevents the PDF file from being opened at all, except by the user who set the password. So if you're talking about the owner password as opposed to the user password, checkout:

http://www.elcomsoft.com/apdfpr.html

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