There are many free PDF readers available, mainly Adobe Reader, Foxit Reader and Nitro Reader, if you are looking for a free PDF reader just for viewing PDF files then you can opt for All in one PDF Lite .
All-in-One PDF Lite is a simple and lightweight PDF reader compatible with Windows 2000/XP/Vista/7.
Full Features of PDF Lite
- Multi-page view
- Support for thousands of fonts
- Page zoom and adjustment options
- navigation bar
All-in-One PDF Lite is freeware.