Can anyone recommend me a good alternative for Adobe Reader ? I need a software that is fast and light which works on Windows.
I've been using SumatraPDF for a few years now. It was my replacement for Foxit reader when I became annoyed with that product for a few reasons (I won't go into it right now).
SumatraPDF supports various formats if you are looking for more than just a PDF reader. For example it supports:
Here is a screenshot: