Archive for June, 2006

PDF/A metadata – namespace URIs and prefixes

PDF/A developers and users should be aware of a couple of important corrections that are going to be made to the metadata specifcations for PDF/A.

The PDF/A specification requires that certain metadata be written into conforming PDF/A files. This metadata is in XML, and more specifically uses the Adobe XMP specification. Unfortunately the published version of PDF/A had some errors and ambiguities in the specification of that metadata. This may lead to some tools producing PDF/A that is not strictly compliant with PDF/A (either as originally published or as corrected) or to some tools declaring files non-compliant when they are compliant.

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