Creating a PDF and sending by email

I am looking at the ablity for users to enter some information into a form and send it via mail().

What I'd like is for the details to be sent as a PDF attachment. Possibly with the name of the the sender and a date/time. test_user_06052011.pdf

I have a design for the PDF, but I'm not sure how I'd integrate this design to create a PDf in PHP.

Does anyone have an examples or ways in which I could do this?