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Re: Reference/Note tags

for

From: Philip Kiff
Date: Apr 10, 2025 12:57PM

Following up on the use of Lbl (Label) tags in PDF/UA-1. I guess I'm not
sure where in the various standards it says that we can't have an Lbl
tag nested inside a Reference tag?

I always find the Lbl tags confusing because there are significant
shifts between different versions. Even within PDF/UA-1, there is a bit
of contradiction with them being included in the BLSE (Block-Level
Structure Elements) table, when they are clearly being treated as ILSE
(Inline-Level Structure Elements) elsewhere.

I think someone may have previously pointed out to me where this rule
exists in PDF/UA-1, but I can't seem to find it now.

Thanks,

Phil.

On 2025-04-10 10:08 a.m., Paul Rayius via WebAIM-Forum wrote:
> [....] So, while it might be allowed, and appropriate, in the PDF 2.0 / PDF/UA-2 context, to have a Lbl inside a Reference, that's not allowed in PDF/UA-1.