What do I need to view a Secure PDF?
You need Adobe Acrobat Reader and the free Adobe-approved FileOpen plug-in installed. FileOpen is compatible with the following versions of Acrobat:Windows:
XP, 2003, Vista, 2008, Windows 7, Windows 8
Adobe Reader/Adobe Acrobat 6.0 or later
Mac:
OS X 10.5 or later
Adobe Reader/Adobe Acrobat 5.0 or later
Linux:
Linux Kernel 1.4 or later
Adobe Reader/Adobe Acrobat 7.0 or 8.0 only.