Designer woudl be used to create a PDF that the user woudl load into
their Reader or Acrobat. The PDF woudl submit either the data that the
user entered (XML) or the entire PDF to your web server for processing
Post it like an HTML form) . The ability to submit outside of the
browser and the ability to allow the users to partially file the form
and save work in progress and the users are using Reader then you woudl
require LiveCycle Reader Extensions to be able to activate the features
of Reader...