FW: PDF/A validation fails in the test environment, but works in production

[christian_kulesza]

I have now spent some time trying to understand this deviation in behaviour.
In my opinion, we cannot parse `XMPMetaData` during validation because it is
not formatted correctly at the position of the lang attribute. If I comment
out the part that sets the DublinCore schema, the parsing works, but the
validation then fails. Can you explain to me why the `lang` attribute lang
is set correctly in Production and not in Test? As it is the same process,
the result should be the same.

 

https://imgur.com/a/FTgmlYl

 

```java

private static void createDublinCoreSchema(
    PDDocumentInformation docInfo,
    XMPMetadata xmpMetadata
) {
   if (docInfo.getTitle() != null) {
        DublinCoreSchema dublinCoreSchema =
xmpMetadata.createAndAddDublinCoreSchema();
        dublinCoreSchema.setTitle(docInfo.getTitle());
   }
}

```

 

## Metadata test | After PDFBox PDF/A conversion

<?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?><x:xmpmeta
xmlns:x="adobe:ns:meta/">

  <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";>

    <rdf:Description xmlns:pdfaid="http://www.aiim.org/pdfa/ns/id/";
rdf:about="">

      <pdfaid:part>1</pdfaid:part>

      <pdfaid:conformance>B</pdfaid:conformance>

    </rdf:Description>

    <rdf:Description xmlns:dc="http://purl.org/dc/elements/1.1/";
rdf:about="">

      <dc:title>

        <rdf:Alt>

          <rdf:li
lang="x-default">Arbeitsunfähigkeitsbescheinigung</rdf:li>

        </rdf:Alt>

      </dc:title>

    </rdf:Description>

    <rdf:Description xmlns:xmp="http://ns.adobe.com/xap/1.0/"; rdf:about="">

      <xmp:CreateDate>2025-06-27T11:10:21+00:00</xmp:CreateDate>

      <xmp:ModifyDate>2025-06-27T11:10:21+00:00</xmp:ModifyDate>

      <xmp:CreatorTool>Mozilla/5.0 (Windows NT 10.0; Win64; x64)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0
Safari/537.36</xmp:CreatorTool>

    </rdf:Description>

    <rdf:Description xmlns:pdf="http://ns.adobe.com/pdf/1.3/"; rdf:about="">

      <pdf:Producer>Skia/PDF m136</pdf:Producer>

    </rdf:Description>

  </rdf:RDF>

</x:xmpmeta><?xpacket end="w"?>

 

## Metadata production | After PDFBox PDF/A conversion

<?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?><x:xmpmeta
xmlns:x="adobe:ns:meta/">

  <rdf:RDF xmlns:rdf=http://www.w3.org/1999/02/22-rdf-syntax-ns#>

    <rdf:Description xmlns:pdfaid=http://www.aiim.org/pdfa/ns/id/
rdf:about="">

      <pdfaid:part>1</pdfaid:part>

      <pdfaid:conformance>B</pdfaid:conformance>

    </rdf:Description>

    <rdf:Description xmlns:dc=http://purl.org/dc/elements/1.1/ rdf:about="">

      <dc:title>

        <rdf:Alt>

          <rdf:li
xml:lang="x-default">Arbeitsunfähigkeitsbescheinigung</rdf:li>

        </rdf:Alt>

      </dc:title>

    </rdf:Description>

    <rdf:Description xmlns:xmp=http://ns.adobe.com/xap/1.0/ rdf:about="">

      <xmp:CreateDate>2025-06-27T11:13:43+00:00</xmp:CreateDate>

      <xmp:ModifyDate>2025-06-27T11:13:43+00:00</xmp:ModifyDate>

      <xmp:CreatorTool>Mozilla/5.0 (Windows NT 10.0; Win64; x64)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0
Safari/537.36</xmp:CreatorTool>

    </rdf:Description>

    <rdf:Description xmlns:pdf=http://ns.adobe.com/pdf/1.3/ rdf:about="">

      <pdf:Producer>Skia/PDF m136</pdf:Producer>

    </rdf:Description>

  </rdf:RDF>

</x:xmpmeta><?xpacket end="w"?>