Foxit PDF Reader (Alternative of Adobe Reader)

Foxit PDF Reader is the popular pdf viewer for its compact size, easy to install and fastest loading time, supports many languages, maintains the files original state...Unlike the other pdf viewer like Adobe reader it take very little resources of your PC which made it very popular among the pros..

Foxit PDF Reader is a small, fast, and feature rich PDF viewer for Microsoft Windows, which allows you to open, view, and print any PDF file. Foxit PDF Reader is secure, offering 3-three levels of PDF viewing security to protect against malicious PDF files.

Adobe Reader (Acrobat Reader)

Adobe Reader former Acrobat Reader a "must to have" soft in your pc to read docs, newspapers in .pdf . It would get integreted in your browser to enable you read the pdf files online directly in your web browser. Adobe Reader software is the global standard for electronic document sharing. It is the only PDF file viewer that can open and interact with all PDF documents. Use Adobe Reader to view, search, digitally sign, verify, print, and collaborate on Adobe PDF files and its a Freeware!!!

7-Zip Archiver (Open source & widely used)

7-Zip (a real alternative of Winzip and Winrar) is open source software which works in Windows 7 / Vista / XP / 2008 / 2003 / 2000 / NT / ME / 98. Use this free soft to compress or decompress your files in all the extentions (eg. .zip, .rar, .tar, .cab etc...).

There is a port of the command line version to Linux/Unix. Compression ratio results are very dependent upon the data in the file. Usually, 7-Zip compresses to 7z format 30-70% better than to zip format. And 7-Zip compresses to zip format 2-10% better than most of other zip compatible programs.