Adobe Reader

Adobe® Reader® software is the free global standard for reliably viewing, printing, and commenting on PDF documents.

It's the only PDF file viewer that can open and interact with all types of PDF content, including forms and multimedia.

• Where Available:  Mod Lab, Phd Lab, Student Computer, RPC
• Source: http://get.adobe.com/reader/otherversions/
• Cost: Free
• Platform: Windows, Mac