hi friends,

can anyone help me embed some security in the pdf file using api's of acrobat reader.

what i wanna do is i will be providing some pdf files for download but i dont want those pdf files to be opened by every one. they should only be opened on the systems that i want. i would like to install some plugin on the systems that can open that file. when i open the file it should check for that plugin and if it is there on the system then only it should open or else it should close. i know we can achieve this but i dont know how to..please help me...

thanx,