How to use tcpdf library in a module

[coosal]

I am new to Joomla. I am currently using Joomla 1.5 for development. I am developing a form module that functions like providing users to fill up the form and submit it. Now when a user submits the filled up form, this module should generate a dynamic pdf file which includes all the submitted data along with the related fields. Moreover I have to beautify the layout of the file using css and html tags. I want to use Joomla built in pdf function for this. But I have no idea how to manipulate the function for pdf generation. Please help me with this.