PDF Problem

I had my computer worked on for virus removal by a friend and now my PFD program only show what looks like code or something. He says he can’t understand why it"s doing that. I did some googling but can find anything that might help,at least something that I can understand.
Anyone got an answer for me?:confused:

You might want to try a few online virus scans to make sure you are rid of the virus. Here is one from Trend Micro: http://housecall.trendmicro.com/

Have you tried uninstalling, then reinstalling the program? Which one is it by the way?