Export GridView with some additional text to PDF in ASP.Net

hi all,

i really have a problem..my situation is, firstly i will display the data in gridview (like a summary) and then user will click a button to generate pdf of the data. the content in the pdf is different to gridview.i mean in a table format not in gridview format plus some paragraph of text below..

i dont know how to generate.i dont know where to start.i never done this before.

please help me.tomorrow is monday :(