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The value of the name object becomes the object name.
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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.
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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 )
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0 (RDF) (default)
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1 (PlainXMP)
Form Model

metadata