If metadata does not contain XMP properties belonging to the Dublin Core scheme, the method returns null.

If the metadata does not have Dublin Core XMP properties, and you need to add such properties, create a new instance of the com.accusoft.imagegear.formats.xmp.dublincore.ImGearDublinCoreXMPMetadata class, pass it to this method, and then add XMP properties using corresponding properties of the com.accusoft.imagegear.formats.xmp.dublincore.ImGearDublinCoreXMPMetadata class.

If you need to remove Dublin Core XMP schema properties from the metadata, set this value to null.