The value of the name object becomes the object name.
A desc:ref property qualifier is added, whose value is an XPath expression pointing back to the parent of the original desc. The order of desc objects within a single parent is not preserved. Multiple desc objects of the same name are not collected. Only the first desc object appears in the output.
Content under the desc object is converted as follows:
When the XDP file is rendered as a PDF file, the collected metadata is written to the PDF file’s XMP packet. Copies of the same metadata continue to exist in the XFA stream inside the PDF file.
Reference_Syntax.metadata ( INTEGER param )
0 (RDF) (default)
1 (PlainXMP)
Form Model

metadata