Hi Pablo, Wolfgang, Hans,
is there any news on the accessibility topic (text Alt on a specific image
element)?
Yours, Steffen
> Am 25.02.2025 um 17:45 schrieb Pablo Rodriguez via ntg-context
> <ntg-context@ntg.nl>:
>
> Hans,
>
> with the following source, veraPDF-1.29.11 complains about a
> non-standard tag named /documentpart:
>
> \setuptagging[state=start]
>
> \setupbackend
> [format=PDF/A-3a,
> intent=sRGB IEC61966-2.1,
> level=0]
>
> \starttext
> whatever
>
> \pdfbackendactualtext{abc}{hoh}
> \stoptext
>
> The problematic object reads:
>
> 4 0 obj
> <<
> /K 28 0 R
> /ParentTree 5 0 R
> /RoleMap <<
> /break /NonStruct
> /document /Document
> /documentpart /DocumentFragment
> /navigationpage /NonStruct
>>>
> /Type /StructTreeRoot
>>>
> endobj
>
> If I replace (according to
> https://opensource.adobe.com/dc-acrobat-sdk-docs/pdfstandards/PDF32000_2008.pdf#nameddest=G13.2348782)
> /documentpart with /Part, validation in veraPDF is perfectly fine.
>
> BTW, /DocumentFragment seems not to be included in PDF-1.7
> (https://opensource.adobe.com/dc-acrobat-sdk-docs/pdfstandards/PDF32000_2008.pdf#search=DocumentFragment).
>
> According to
> https://github.com/veraPDF/veraPDF-model/blob/4c8e855b68546547971121281ff2ab3d1b822900/src/main/java/SALayer.mdl#L358,
> /DocumentFragment seems to be only available in PDF-2.0.
>
> Providing a patch for strc-tag.lmt would be easy, but this would affect
> to ua-2 (which may use /DocumentFragment).
>
> Many thanks for your help,
>
> Pablo
>
>
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If your question is of interest to others as well, please add an entry to the
Wiki!
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