You could also be looking for a way to turn an HTML form submission into a PDF. That's a bit more complicated and would require some programming (I recommend reading up on fpdf for php).
Once you have created your file and still in acrobat got to the 'forms' menu and select 'distribute form'. (see attached images)
Just select the email option and you can send this out to users or place the file on your site. When a user opens it in the latest acrobat reader (or possible browser but not tested) they can fill out the form and then email it to you.
Hope this helps.
The only other way I can think of is converting the PDF to HTML. See the following link: