Getting document information

You can use the DocumentInformation DDX element to return an XML file containing information about a PDF document. The PDF document can be a source document (one that was provided as an input stream) or one that was created as a result document. (See DocumentInformation.)

In this example, information about the result document is returned as an XML stream.

Example: Getting document information

<DDX>

	<PDF result="doc1">

		<PDF source="doc2"/>

	</PDF>

	<DocumentInformation result="info.xml" source="doc1"/>

</DDX>

Note: The DocumentInformation element must appear after the PDF result element referenced by its source attribute because the result document does not exist until the element that describes it has been interpreted.

The XML stream (info.xml in the example) conforms to a schema specified in docinfo.xsd. Its namespace is

	http://ns.adobe.com/DDX/DocInfo/1.0

The data returned by the DocumentInformation element contains the following information about the document:

•	Metadata from the PDF document properties: title, author, subject, keywords, date created, date modified, creator application, PDF producer

•	PDF version

•	Number of pages in the document

•	Page sizes, rotation angles, and page labels for all pages in the document

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