Full report : here
In a nutshell :
- Copy/print: if printing and/or copying is allowed, but limited (the typical limitation is: you can print 10 pages in 10 days, or copy 10 portions of the text to the Clipboard in 10 days), these limitations can be defeated.
Just create backup copies of the following files from Adobe Acrobat eBook Reader folder:
Data\Vouchers\*.* Data\GB.dbd Data\Category.etb Data\Library*.etb Data\Library*.vld
After copying or printing in Adobe Acrobat eBook Reader, just restore these files from backup, and copy/print limitations will be back to the status as if you have not copied or printed anything at all.