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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (Jira)" <ji...@apache.org> on 2025/11/28 13:56:00 UTC
[jira] [Resolved] (PDFBOX-6106) Invalid type in Schema not detected when in XML attributes
[ https://issues.apache.org/jira/browse/PDFBOX-6106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tilman Hausherr resolved PDFBOX-6106.
-------------------------------------
Resolution: Fixed
> Invalid type in Schema not detected when in XML attributes
> ----------------------------------------------------------
>
> Key: PDFBOX-6106
> URL: https://issues.apache.org/jira/browse/PDFBOX-6106
> Project: PDFBox
> Issue Type: Bug
> Components: XmpBox
> Affects Versions: 2.0.35, 3.0.6 PDFBox
> Reporter: Tilman Hausherr
> Assignee: Tilman Hausherr
> Priority: Minor
> Fix For: 2.0.36, 3.0.7 PDFBox, 4.0.0
>
>
> The verify my work in PDFBOX-6099 I did a mass test with parsing XMP, serializing the data if the parsing worked, and then trying to parse again.
> This was successfully parsed:
> {code:xml}
> <?xpacket begin='' id='W5M0MpCehiHzreSzNTczkc9d' bytes='647'?>
> <rdf:RDF xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'
> xmlns:iX='http://ns.adobe.com/iX/1.0/'>
> <rdf:Description about=''
> xmlns='http://ns.adobe.com/pdf/1.3/'
> xmlns:pdf='http://ns.adobe.com/pdf/1.3/'
> pdf:CreationDate='2004-01-30T17:21:50Z'
> pdf:ModDate='2004-01-30T17:21:50Z'
> pdf:Producer='Acrobat Distiller 5.0.5 (Windows)'/>
> <rdf:Description about=''
> xmlns='http://ns.adobe.com/xap/1.0/'
> xmlns:xap='http://ns.adobe.com/xap/1.0/'
> xap:CreateDate='2004-01-30T17:21:50Z'
> xap:ModifyDate='2004-01-30T17:21:50Z'
> xap:MetadataDate='2004-01-30T17:21:50Z'/>
> </rdf:RDF><?xpacket end='r'?>
> {code}
> The serialized result wasn't parsed:
> {code:xml}
> <?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?>
> <x:xmpmeta xmlns:x="adobe:ns:meta/">
> <rdf:RDF xmlns:pdf="http://ns.adobe.com/pdf/1.3/"
> xmlns:xap="http://ns.adobe.com/xap/1.0/"
> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
> <rdf:Description xmlns="http://ns.adobe.com/pdf/1.3/"
> about=""
> rdf:about="">
> <pdf:CreationDate>2004-01-30T17:21:50Z</pdf:CreationDate>
> <pdf:ModDate>2004-01-30T17:21:50Z</pdf:ModDate>
> <pdf:Producer>Acrobat Distiller 5.0.5 (Windows)</pdf:Producer>
> </rdf:Description>
> <rdf:Description xmlns="http://ns.adobe.com/xap/1.0/"
> about=""
> rdf:about="">
> <xap:CreateDate>2004-01-30T17:21:50+00:00</xap:CreateDate>
> <xap:MetadataDate>2004-01-30T17:21:50+00:00</xap:MetadataDate>
> <xap:ModifyDate>2004-01-30T17:21:50+00:00</xap:ModifyDate>
> </rdf:Description>
> </rdf:RDF>
> </x:xmpmeta><?xpacket end="r"?>
> {code}
> with the error "No type defined for {[http://ns.adobe.com/pdf/1.3/]}CreationDate" and yes, the error message is correct, both files are incorrect XMP according to [https://www.pdflib.com/pdf-knowledge-base/xmp/free-xmp-validator/] . So why wasn't it detected in the first file? The cause is in PDFBOX-2318, the item is accepted as a text type. In the second parsing a check happens at a different place and the problem is caught when in strict mode. Solution: throw an exception for the first parsing when the property is an xml attribute and not a child.
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