Hi. Thank you for your reply. I really appreciate it. Yes, it looks like ExifTool works fine, but the XMP data is not readable when I try to dump this information with exiv2 ( on linux ). I did not make it work with "The PHP Metadata Toolkit".
It might be that ExifTool is folowing the standards, but the files is not readable for other tools, so this is my problem.
exampe: 
#I tag a file like this:

my $exifTool = new Image::ExifTool;
$exifTool->ExtractInfo($image);
$exifTool->SetNewValue('XMP:Headline' => "heisannheisann");
$exifTool->WriteInfo($image);

[download]
When I look at this file with the string util in linux, I get this block: 
http://ns.adobe.com/xap/1.0/
<?xpacket begin='
' id='W5M0MpCehiHzreSzNTczkc9d'?>
<x:xmpmeta xmlns:x='adobe:ns:meta/' x:xmptk='Image::ExifTool 7.89'>
<rdf:RDF xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'>
 <rdf:Description rdf:about=''
  xmlns:photoshop='http://ns.adobe.com/photoshop/1.0/'>
  <photoshop:Headline>heisannheisann</photoshop:Headline>
 </rdf:Description>
</rdf:RDF>
</x:xmpmeta>
<?xpacket end='w'?>


-- but the exiv2 tool says:

$ exiv2 -p x Vannliljer.jpg
Vannliljer.jpg: No XMP data found in the file


When i do the same thing on a linux box, I get this:

$ exiv2 -p x tmp.jpg
Xmp.photoshop.Headline                       XmpText    14  heisannhei
+sann


$http://ns.adobe.com/xap/1.0/
<?xpacket begin='
' id='W5M0MpCehiHzreSzNTczkc9d'?>
<x:xmpmeta xmlns:x='adobe:ns:meta/' x:xmptk='Image::ExifTool 7.30'>
<rdf:RDF xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'>
 <rdf:Description rdf:about=''
  xmlns:photoshop='http://ns.adobe.com/photoshop/1.0/'>
  <photoshop:Headline>heisannheisann</photoshop:Headline>
 </rdf:Description>
</rdf:RDF>
</x:xmpmeta>

[download]
Any more clues? best regards. Kjell

In reply to Re^2: XMP, Image::ExifTool, strawberryperl by mrkjell
in thread XMP, Image::ExifTool, strawberryperl by mrkjell

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