I have tried to do that several time. I have done the coding in Vb.net.. As i have been working for the company that is pretty strict about the policies on third party software, what we did was use report viewer for report generation. then ask the user to change it to the format then wanted excel, word, or PDF. for PDF conversion we surely might need the third party tool. Basically, i could not find the way to do that even after the long research..