My company, Viga Technologies, has recently developed an object which converts XDPs to PDFs automatically. It can be deployed as a server side object to be incorporated into existing applications or it can be run as a service by us on a per-form basis. The engine consumes XDPs and also allows the user to pass an XML data file to populate the form. It is windows based and developed under the .net framework.
For the use described above, there is an object provided by Adobe for converting IFD forms to XDP forms. For the conversion of XDP to PDF, our engine could be used. If you have any questions, please feel free to contact me.
Adam Wachtel
Viga Technologies (http://www.vigatech.com)
awachtel@vigatech.com
(678)371-4401