About the best you can do is set up the form to submit to a web server and have the server generate the web page as the response, inserting the data submitted by the PDF in the appropriate fields. It's not clear whether this would be feasible in your situation though.
Hi George, thanks for your response!
The main issue I have is that this web page is in fact a government page in which I have to manually copy and paste information.
I thought that might be what you were wanting to do, but I'm not aware of a way to automate it.
No worries George, thanks anyway!