PDF = Adobie Acrobat now called Adobie Reader, a "must have" PDF file reader - show & print only.......this is a free download from Adobie, its the full prog that costs
http://www.adobe.com/downloads/
get version 7 here (unless you need to play/adjust the file)
Note:
A nice little PDF maker can be found here,
http://www.exp-systems.com/
installs as a printer driver, any application - select print, select PDF redirect as printer, and saves as PDF file on desktop, no adverts added to page, I find this a useful tool as PDF seems so universal, I can open em on my Palm ! (free again, with option of cheap upgrade to pro)