How to get XMP MetaData as an XML String in a process?

Hi there,

I have a process where I would like to export a documents XMP MetaData, manipulate the XMP MetaData and then import the MetaData again to the document.

I thougt first I will use the service Name "XMPUtilityService" with the Service Operation "Export XMP" to export the XMP MetaData as a document.

Hoewer I am not sure how to manipulate the output document from the Export XMP service.

When I print out the document.toString() in a execute Script Service I get the following:

<document state="active" senderVersion="0" persistent="false" senderPersistent="false" passivated="false" senderPassivated="false" deserialized="false" senderHostId="null" callbackId="0" senderCallbackId="0" callbackRef="null" isLocalizable="true" isTransactionBound="false" defaultDisposalTimeout="600" disposalTimeout="600" maxInlineSize="65536" defaultMaxInlineSize="65536" inlineSize="3440" contentType="null" length="-1"><cacheId/><localBackendId/><globalBackendId/><senderLocalBackendId/><senderGl obalBackendId/><inline><?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?>
<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="A...</inline><senderPullServantJndiName/><attributes/></document>

Actually I expected something like this:

<?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?>
<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.0-jc006 DEBUG-1.0, 2009 Jun 23 11:07:21-PDT">
   <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
      <rdf:Description rdf:about=""
            xmlns:pdf="http://ns.adobe.com/pdf/1.3/">
         <pdf:Producer>Adobe LiveCycle PDF Generator ES2</pdf:Producer>
      </rdf:Description>
      <rdf:Description rdf:about=""
            xmlns:xmp="http://ns.adobe.com/xap/1.0/">
         <xmp:ModifyDate>2010-04-20T20:43:59+02:00</xmp:ModifyDate>
         <xmp:MetadataDate>2010-04-20T20:43:59+02:00</xmp:MetadataDate>
      </rdf:Description>
      <rdf:Description rdf:about=""
            xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/">
         <xmpMM:DocumentID>uuid:0cf2c6c6-2fba-2b39-5fb6-33ad8ccf58aa</xmpMM:DocumentID>
         <xmpMM:InstanceID>uuid:187bc5a2-acb0-2fa9-711d-33ad8ccf58aa</xmpMM:InstanceID>
      </rdf:Description>
   </rdf:RDF>
</x:xmpmeta>

<?xpacket end="w"?>

What do I need to do to get the XMPMeta data as an XML String from a document within a process?

Thanks in advance!

Paul