My friend asked me for a free pdf convetoer which he want to use with his asp.net website. He dont have permission to execute an exe file or install one. So i had a search in google and i found a link in code project. Which described about how to use a free PDF converter library iTextSharp.
You can download the ibrary here from sourceforge.net
it includes library, source,examples and some extras.
Give it a try if you are searching for a free PDf converting Library for your ASp.net website.