Thread: Adobe PDF DRM?
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Old 02-16-2007, 11:25 PM   #8
adinb
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Quote:
Originally Posted by valkyriesound
If I buy a book with Adobe pdf drm is there any way to get it into a better format for my reader? Thanks!

Does the reader support drm pdfs?
Taking a look at the encrypted pdfs from ebooks.com, a password user password isn't used.

The encryption method used identifies itself as

Quote:
ebook exchange (EBX_Handler) 128 bit security V.3 Encryption Handler
So password based decrypters (like PDFKey Pro or the notorious Elcomsoft apdfpr) won't work. These file encryption methods even check back with adobe (and possibly the ebooks.com's servers, I haven't broken out the packet capture software yet).

The easy way to see if you have the really nasty encryption seems to be if you try opening the pdf in (OS X) colorsync, preview, pdf2ps, etc and you just get blank pages.
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