On 8/1/2013 6:56 AM, "Stenersen, Björn WI \(Fa. Kessler Beratung\)" wrote:
> Hello,
> i am trying to create a pdf/a with FOP 1.1, but the validation of the
> generated PDF always fails due to corrupt xmp-metadata.
> I tried several Validators, all of them report the same error:
>
> XMP metadata: Property 'language' in predefined XMP schema
> 'http://purl.org/dc/elements/1.1/' for PDF/A has wrong value type (must be
> 'rdf:bag')
> (http://www.pdflib.com/knowledge-base/xmp-metadata/free-xmp-validator/)
>
> So I tried to fix the problem by declaring the language-property in my
> fo:declarations-section:
>
> <fo:declarations>
> <x:xmpmeta xmlns:x="adobe:ns:meta/"
> xmlns:dc="http://purl.org/dc/elements/1.1/";
> xmlns:xmp="http://ns.adobe.com/xap/1.0/";
> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";>
> <dc:creator>
> <rdf:Seq>
> <rdf:li>
> CREATOR
> </rdf:li>
> </rdf:Seq>
> </dc:creator>
> <dc:language>
> <rdf:Bag>
> <rdf:li>
> de-DE
> </rdf:li>
> </rdf:Bag>
> </dc:language>
> <dc:date>
> <rdf:Seq>
> <rdf:li>1999-08-01T12:56:02+02:00</rdf:li>
> </rdf:Seq>
> </dc:date>
> <xmp:CreatorTool>My App</xmp:CreatorTool>
> </x:xmpmeta>
> </fo:declarations>
>
> In the resulting PDF the metadata looks like this:
>
> <?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:dc="http://purl.org/dc/elements/1.1/";
> rdf:about="">
> <dc:format>application/pdf</dc:format>
> <dc:language>x-unknown</dc:language>
> <dc:creator>
> <rdf:Seq>
> <rdf:li>CREATOR</rdf:li>
> </rdf:Seq>
> </dc:creator>
> <dc:date>
> <rdf:Seq>
> <rdf:li>1999-08-01T12:56:02+02:00</rdf:li>
> <rdf:li>2013-08-01T13:53:08+02:00</rdf:li>
> </rdf:Seq>
> </dc:date>
> </rdf:Description>
> <rdf:Description xmlns:pdfaid="http://www.aiim.org/pdfa/ns/id/";
> rdf:about="">
> <pdfaid:conformance>B</pdfaid:conformance>
> <pdfaid:part>1</pdfaid:part>
> </rdf:Description>
> <rdf:Description xmlns:pdf="http://ns.adobe.com/pdf/1.3/"; rdf:about="">
> <pdf:PDFVersion>1.4</pdf:PDFVersion>
> <pdf:Producer>Apache FOP Version SVN tags/fop-1_1</pdf:Producer>
> </rdf:Description>
> <rdf:Description xmlns:xmp="http://ns.adobe.com/xap/1.0/"; rdf:about="">
> <xmp:CreateDate>2013-08-01T13:53:08+02:00</xmp:CreateDate>
> <xmp:CreatorTool>My App</xmp:CreatorTool>
> <xmp:MetadataDate>2013-08-01T13:53:08+02:00</xmp:MetadataDate>
> </rdf:Description>
> </rdf:RDF>
> </x:xmpmeta>
> <?xpacket end="r"?>
>
> Is anyone experiencing the same problem? Any tips how to fix this?
>
> Thanks Björn
>
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>
Hi, Björn-
I used something like this:
<fo:declarations>
<x:xmpmeta xmlns:x="adobe:ns:meta/">
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
xmlns:dc="http://purl.org/dc/elements/1.1/";>
<rdf:Description rdf:about="">
<dc:title>
<rdf:Alt>
<rdf:li xml:lang="x-default">
<xsl:value-of select="//title" />
</rdf:li>
</rdf:Alt>
</dc:title>
...
</rdf:Description>
</rdf:RDF>
</x:xmpmeta>
</fo:declarations>
and was able to successfully validate the output as PDF/A.
-Terence Bandoian
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