Hello PDF is 3rd party plugin. I guess the INI is created first time of PDF plugin use. Cause you have PSPad installed in program Files folder, PSPad has no rights to write there. As the workarround run PSPad as administrator (over right mouse) and open any PDF file. This should elevate rights to PSPad to be able create PDF.INI file
-- <http://forum.pspad.com/read.php?2,62124,62126> PSPad freeware editor http://www.pspad.com
