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Originally Posted by "kjk
Adobe has multiple DRM schemes for PDFs?? Damn.
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and it is multiple, btw.
In Acrobat/Reader there are built-in 3 security handlers
- Password, Certificate and Policy Server.
This used to be 5 but the eBook security handler got moved into it's own application - Adobe Digital Editions, and the Entrust Certificate security handler was just removed.
So that's 4 PDF DRMs from Adobe .
But it's still worse than that because there are quite a few 3rd Party Acrobat/Reader plugins for DRM such as FileOpen and LockLizard.