Quote:
Originally Posted by Shaggy
You can take screen captures, OCR them, and basically end up with the same PDF you started with (after fixing any OCR errors), just without the DRM.
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That's true for most books, but the examples I refer to are theoretical physics texts: particle physics, quantum field theory, string theory - all full of equations and diagrams. There's no OCR program in the world that will be able to handle that. You can see an example at
this link (the exerpt is from the introduction which is very light on math, it gets heavier later
). A copy of the whole book that can be downloaded from file sharing sites has the same quality. It's a pity that this stuff is not yet legally available for the DR 1000S.