Quote:
Originally Posted by BWinmill
I agree that it is ambiguous given that Adobe provides both ADEPT and PDF. Even written more properly as "Adobe, Encrypted (DRM)" many people would be mislead. I would probably make a mistake in interpreting it the first time around (if I wasn't forewarned by this thread), but I wouldn't blame the bookseller. It would be my fault for not clairifying the matter. I don't think that they are being deliberately misleading.
(snipped)
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Adobe uses the ADEPT DRM scheme to encrypt both epub and PDF. Because the term Adobe can be used to refer to either the PDF file format, or the ADEPT DRM scheme. Their usage of "Adobe Encrypted (DRM)" can only be unambiguously interpreted to mean that it uses ADEPT DRM, not the file format.
Referring to the file format simply as "Adobe" is just a bad idea to start with.