Thread: Adobe PDF DRM?
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Old 02-15-2007, 11:31 PM   #4
scotty1024
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Join Date: Jul 2006
Location: Peoples Republic of Washington
Device: Reader / iPhone / Librie / Kindle
Quote:
Originally Posted by RWood
Scotty, this worked on a DEC PDP-10 a long time ago so I'm not sure how it fit in the Sony Reader: We created another file (text) to hold the password and a program (think padded cell) to feed the password to the software. We trapped the call for the password and responded from the text file. I hope the solution is as simple as that. This would not be a crack of the PDF DRM, just a method of using the password.

Some modern software that I run also checks the CPU serial number on install and uses that as part of the encoding so even with the password I cannot use the software on another machine.
Hmmm the password could be stored into the cache.xml file in the entry for the PDF file...

Code:
<text author="" sourceid="38" id="155" date="Wed, 29 Nov 2006 06:11:20 GMT" mime="application/pdf" path="Books/Biography of Nikola Tesla.pdf/Biography of Nikola Tesla.pdf" size="646758" title="Prodigal Genius">
  <password>I Can't Believe I Bought a Password Protected PDF file</password>
</text>
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