On 4/4/2025 9:09 PM, Pablo Rodriguez via ntg-context wrote:
On 4/4/25 17:34, Pablo Rodriguez via ntg-context wrote:
[...]
I will report back as soon as I have found out what may not be
working here.
After some testing, it seems we have two main issues with PDF/A-3a
validations.
First, PDF/A-2 and PDF/A-3 both require "/MarkInfo << /Marked true >>",
the same way as PDF/A-1 does.
https://github.com/veraPDF/veraPDF-validation-profiles/wiki/PDFA-Parts-2-and-3-rules#rule-6722-1
is just for reference.
lpdf-tag.lmt contains on line 590:
if version == 1 then
pdf version
It isn’t clear to me whether "version" here refers to PDF/A version. If
that were the case, /MarkInfo is a requirement for all versions prior to
PDF/A-4 (according to
https://github.com/veraPDF/veraPDF-validation-profiles/wiki/PDFA-Part-4-rules).
hm, peter checked all that against the 1.7 standard so i'm reluctant to
change that; not all documents have to be marked
Second, /Namespace, /NS and /RoleMapNS are only allowed in PDF-2.0
(https://github.com/pdf-association/arlington-pdf-model/blob/master/tsv/latest/Namespace.tsv).
Since we have PDF/A-3a (and not PDF/A-4F [at least, yet]), I’m afraid
the dictionary has to be /StructTreeRoot here.
There is a third issue, PDF-1.7 doesn’t allow /DocummentFragment as
standard structure type. Only Part, Art (article), Sect (section) or Div
would match here
(https://opensource.adobe.com/dc-acrobat-sdk-docs/pdfstandards/PDF32000_2008.pdf#nameddest=G13.2348782).
Hans, I’m afraid this is the way to go. If my writting isn’t clear, let
me know.
not sure what you mean: you either tag version 1 or you tag version 2;
order matters so don't enable tagging for 2 and then choose some version
1 related format (maybe i can check someplace if users mix up) but we
tested and got validated documents from vera .. unless of course the
standard changed again (vera also changes and there are also differences
between the used parsers)
it's not something i want to waste time on continuously ... just an
occasional catch up with changes .. really it's not the complication but
the mess that determines pace here
Hans
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