The .NET framework does not contain any in-built or any support  to work with PDF files. So, if you want to generate or work with PDF files as part of your ASP.NET web application, you will have to rely on one of the many third party components that are available. One of the free components is iTextSharp, which is a part of a well known Java utility.

Since the lack of documentation on Itextsharp.dll using in c#, so it is quite cumbersome for some to work on this. I am putting down here few of my development task i did while working on itextsharp.

One can download the the dll from
http://sourceforge.net/project/platformdownload.php?group_id=72954