try STDU Viewer - http://www.stdutility.com

adobe reader… its free.. and reads pdf files so you cant have to convert them

adobe HOMZZZZZ!

adobe ver 9.0 ,and it is free ,type in google adobe 9.0 download it
will give you the link to download

acrobat is the best from my experience. but sounded from your question is that you might not be using a computer. may be you should be more specific in where would you like to read it, eg iphone? nokia? BB?

adobe Reader
get.adobe.com/reader/

or

PDFill ~~~~~~~ Link Below ~~~~~~~
http://download.cnet.com/PDFill-PDF-and-Image-Writer-Free/3000-18497_4-10432936.html

I’ve been using Stanza for non-PDF files. It can do some file conversion and so can Calibre.