🚀 go-pugleaf

I think you've been Jet Skiing without a helmet.  Why do you keep saying "then they can't get it into a PDF after that?"  Isn't the form already in PDF format?  In fact, I am having a hard time even determining what your work flow is, or why are you worried about anyone "changing the form fields?"  Form fileds are for typing in information.  If you lock them so no one can change them, no one would be able to filll out your form 

Normal work flow would be: 

Create the basic form in Illustrator and print it to PDF with the Distiller printer. 

Open the form in Acrobat and create form fields to be filled out. Once the fields are created, you save the PDF form and post it to a web site. 

People who are supposed to fill out the form open the form on the web site with Reader or Acrobat, fill in the form fields with the required information, then either print the form to hard copy (peoiple with Acrobat could also save the filled in form to their hard drive) and deliver it to you, or you set up a server-side CGI or ASP script that allows them to submit the form field data directly to your server, where you can retrieve it. 

Eaxctly what is YOUR work flow?