I used ExifTool GUI to import this XMP document (GettyVilla.xmp) into a jpeg with no metadata.

1. Import/Export
2. Import metadta from single file...
3. choose a .xmp document

This will also work with an .mie document

This is the resulting jpeg with new embedded metadata.

To download: right click, "save link as..."

To download: right click, "save link as..."

.xmp document

<?xpacket begin='' id='W5M0MpCehiHzreSzNTczkc9d'?>
<x:xmpmeta xmlns:x='adobe:ns:meta/' x:xmptk='Image::ExifTool 7.52'>
<rdf:RDF xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'>

 <rdf:Description rdf:about=''
  xmlns:Iptc4xmpCore='http://iptc.org/std/Iptc4xmpCore/1.0/xmlns/'>
  <Iptc4xmpCore:CreatorContactInfo rdf:parseType='Resource'>
   <Iptc4xmpCore:CiAdrCity>San Diego</Iptc4xmpCore:CiAdrCity>
   <Iptc4xmpCore:CiAdrCtry>United States</Iptc4xmpCore:CiAdrCtry>
   <Iptc4xmpCore:CiAdrPcode>92104</Iptc4xmpCore:CiAdrPcode>
   <Iptc4xmpCore:CiAdrRegion>California</Iptc4xmpCore:CiAdrRegion>
   <Iptc4xmpCore:CiEmailWork>greser@ucsd.edu</Iptc4xmpCore:CiEmailWork>
   <Iptc4xmpCore:CiTelWork>858n246-0998</Iptc4xmpCore:CiTelWork>
  </Iptc4xmpCore:CreatorContactInfo>
  <Iptc4xmpCore:Location>17985 Pacific Coast Highway</Iptc4xmpCore:Location>
  <Iptc4xmpCore:Scene>
   <rdf:Bag>
    <rdf:li>scn:011700</rdf:li>
   </rdf:Bag>
  </Iptc4xmpCore:Scene>
  <Iptc4xmpCore:SubjectCode>
   <rdf:Bag>
    <rdf:li>sunset</rdf:li>
    <rdf:li>shadows</rdf:li>
    <rdf:li>mural paintings</rdf:li>
    <rdf:li>peristyles (colonnades)</rdf:li>
    <rdf:li>trompe-l&#39;oeil</rdf:li>
    <rdf:li>greek</rdf:li>
    <rdf:li>roman</rdf:li>
    <rdf:li>Getty Villa</rdf:li>
   </rdf:Bag>
  </Iptc4xmpCore:SubjectCode>
 </rdf:Description>

 <rdf:Description rdf:about=''
  xmlns:MicrosoftPhoto='http://ns.microsoft.com/photo/1.0'>
  <MicrosoftPhoto:LastKeywordIPTC>
   <rdf:Bag>
    <rdf:li>sunset</rdf:li>
    <rdf:li>shadows</rdf:li>
    <rdf:li>mural painting</rdf:li>
    <rdf:li>peristyles (colonnades)</rdf:li>
    <rdf:li>trompe-l&#39;oeil</rdf:li>
    <rdf:li>greek</rdf:li>
    <rdf:li>roman</rdf:li>
    <rdf:li>Getty Villa</rdf:li>
   </rdf:Bag>
  </MicrosoftPhoto:LastKeywordIPTC>
  <MicrosoftPhoto:LastKeywordXMP>
   <rdf:Bag>
    <rdf:li>sunset</rdf:li>
    <rdf:li>shadows</rdf:li>
    <rdf:li>mural painting</rdf:li>
    <rdf:li>peristyles (colonnades)</rdf:li>
    <rdf:li>trompe-l&#39;oeil</rdf:li>
    <rdf:li>greek</rdf:li>
    <rdf:li>roman</rdf:li>
    <rdf:li>Getty Villa</rdf:li>
   </rdf:Bag>
  </MicrosoftPhoto:LastKeywordXMP>
 </rdf:Description>

 <rdf:Description rdf:about=''
  xmlns:dc='http://purl.org/dc/elements/1.1/'>
  <dc:creator>
   <rdf:Seq>
    <rdf:li>Greg Reser</rdf:li>
   </rdf:Seq>
  </dc:creator>
  <dc:description>
   <rdf:Alt>
    <rdf:li xml:lang='x-default'>Langdon and Wilson, architect
Neuerburg, Norman, consultant
construction: early 1970&#39;s
rennovation: 1997-2005</rdf:li>
   </rdf:Alt>
  </dc:description>
  <dc:rights>
   <rdf:Alt>
    <rdf:li xml:lang='x-default'>Creative Commons Attribution 3.0 Unported License</rdf:li>
   </rdf:Alt>
  </dc:rights>
  <dc:subject>
   <rdf:Bag>
    <rdf:li>sunset</rdf:li>
    <rdf:li>shadows</rdf:li>
    <rdf:li>mural painting</rdf:li>
    <rdf:li>peristyles (colonnades)</rdf:li>
    <rdf:li>trompe-l&#39;oeil</rdf:li>
    <rdf:li>greek</rdf:li>
    <rdf:li>roman</rdf:li>
    <rdf:li>Getty Villa</rdf:li>
   </rdf:Bag>
  </dc:subject>
  <dc:title>
   <rdf:Alt>
    <rdf:li xml:lang='x-default'>Outer Peristyle, The J. Paul Getty Museum at the Getty Villa </rdf:li>
   </rdf:Alt>
  </dc:title>
 </rdf:Description>

 <rdf:Description rdf:about=''
  xmlns:exif='http://ns.adobe.com/exif/1.0/'>
  <exif:GPSLatitude>34,2.505240N</exif:GPSLatitude>
  <exif:GPSLongitude>118,34.034280W</exif:GPSLongitude>
  <exif:GPSTimeStamp>2008-01-21T05:24:02</exif:GPSTimeStamp>
  <exif:UserComment>
   <rdf:Alt>
    <rdf:li xml:lang='x-default'>Getty Villa Malibu
17985 Pacific Coast Highway
Pacific Palisades, California 90272 

Langdon and Wilson, architect
Neuerburg, Norman, consultant

early 1970&#39;s, construction

1997-2005, rennovation

</rdf:li>
   </rdf:Alt>
  </exif:UserComment>
 </rdf:Description>

 <rdf:Description rdf:about=''
  xmlns:photoshop='http://ns.adobe.com/photoshop/1.0/'>
  <photoshop:City>Pacific Palisades</photoshop:City>
  <photoshop:Country>United States</photoshop:Country>
  <photoshop:Credit>by Greg Reser</photoshop:Credit>
  <photoshop:DateCreated>2008-01-21T05:24:02</photoshop:DateCreated>
  <photoshop:State>California</photoshop:State>
 </rdf:Description>

 <rdf:Description rdf:about=''
  xmlns:tiff='http://ns.adobe.com/tiff/1.0/'>
  <tiff:Artist>Greg Reser</tiff:Artist>
  <tiff:Software>Microsoft Pro Photo Tools</tiff:Software>
 </rdf:Description>

 <rdf:Description rdf:about=''
  xmlns:xmp='http://ns.adobe.com/xap/1.0/'>
  <xmp:CreatorTool>Microsoft Pro Photo Tools</xmp:CreatorTool>
 </rdf:Description>
</rdf:RDF>
</x:xmpmeta>
<?xpacket end='w'?>