I'm not sure about the first part but Acrobat can create forms quite easily and submit to email or database.
I use this method for registration of the software I sell. I actually found that people have an easier time than with an online form. I have no idea why but have got less questions / calls since I switched to PDF form.
One way of doing this would be to create an email address with an auto-responder that sends them another PDF. This way, the user would submit the form to that email and instantly get another PDF file from auto-responder.