Modifying metadata properties

You can modify individual metadata items in the result PDF by means of the Author, Title, Subject, and Keywords elements. In this example, doc1.pdf provides all the metadata for doc2.pdf, with the exception of the Title property, which is set explicitly to "My Memoirs".

Example: Setting a metadata property

<PDF result="doc2.pdf">

	<Title value="My Memoirs"/>

	<PDF source="doc1.pdf"/>

</PDF>

In the next example, the Subject element is a sibling of the Metadata source element. The metadata from doc1.xmp replaces the metadata in doc3.pdf and then the Subject property is overridden by the value provided in the Subject element.

Example: Overriding a metadata property

<PDF result="doc2.pdf">

	<Metadata source="doc1.xmp"/>

	<Subject value="politics"/>

	<PDF source="doc3.pdf"/>

</PDF>

The Author, Title, and Subject elements contain a single string attribute, value. The Keywords element contains Keyword subelements that each have a value attribute.

When specifying keywords, you can set the mode attribute of the Keywords element to Set (the default), which replaces the keywords by the specified set, or Append, which adds the new keywords to the existing ones.

In this example, the Keywords document property for Reference.pdf is set to "PDF, language".

Example: Specifying metadata keywords

<PDF result="Reference.pdf">

	<Keywords>

		<Keyword value="PDF"/> 

		<Keyword value="language"/>

	</Keywords>

	<PDF source="Reference.pdf"/>

</PDF>

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