The customer would like support added for XFA PDF files: https://partners.adobe.com/public/developer/xml/index_arch.html
Basically, we can't do this, and XFA support is *not* part of the PDF specification, it is an optional addendum. XFA is a completely different (XML) language to PDF< and it would be a major effort to add an XML parser to Ghostscript simply to handle these sorts of files. Its not even clear to me what the customer would like us to do with a form anyway, its not like Ghostscript is an interactive application which could be used to fill in the form. I'm marking this as WONTFIX, though I'm open to suggestions and dissenting arguments from the staff.