neskusal som zatial ten soft, ale vraj by mohlo pomoct nieco taketo (ale je to fakt len nijako neovereny tip) :

Advanced Ebook Processor
http://www.geocities.com/whackmol/aebpr.html

Advanced eBook Processor, or simply AEBPR, is a program to decrypt eBooks in Acrobat eBook Reader format (PDF files with EBX security handler), as well as Adobe Acrobat PDF files protected using standard security method, WebBuy technology, or any other Acrobat security plug-in (like FileOpen, SoftLock etc) by converting them into plain PDF files – without any protection and restrictions. Decrypted file can be opened in any PDF viewer

(e.g. Adobe Acrobat Reader) with edit, copy, print, annotate functions enabled. All versions of Adobe Acrobat are supported. Can also decrypt eBook Pro (*.EBK) files, extracting all html pages and images from them.

Please note that unauthorised distribution of copyrighted materials is strictly prohibited. Please consult the license on PDF file or eBook you’ve purchased before processing it with AEBPR.