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Pack and encrypt your ppt files to exe files,protect the distribution of ppt documents,prevent copying,prevent editing,and authorize to open.You can set password for openning ppt files ,the password can be bond to your user's computer,your users can't share your ppt files with other users.
Support powerpoint 2007 and office xp,2003,2002,2000;
support ppt,pps,pptx,ppsx;
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