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(reproduced, window8.1/64bit System Pro-Test available) 1. Delete C:\Program Files\Common Files\adobe\adobe pcd\cache\cache.db and C:\Documents and Settings\All Users\Application Data\flexnet\adobe_00080000_tsf.data (C:\ProgramData\FLEXnet\adobe_00080000_tsf.data under Windows 8/windows 7/vista System) ) Two record files. It is important to note that the second file is a hidden file, so set the show hidden

Adobe Acrobat 9 Pro "User Password" encryption principle analysis Tian Yi love 2010-11-23 There are very few articles on pdf file encryption principles that can be found on the Internet. Even if there is only an analysis of encryption in versions earlier than 9.0, most pdf password cracking tools are helpless to files encrypted in Versions later than 9.0, this ti

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