On 4/15/25 19:10, Hans Hagen wrote:
> On 4/15/2025 5:24 PM, Pablo Rodriguez via ntg-context wrote:
>> [...]
>> All I know is that it has to be fixed in lpdf-tag.lmt, but I don’t know
>> how to fix it.
>
> you can move the Alt and test
>
> local d = pdfdictionary {
> Type = pdf_mcr,
> Pg = pageref,
> MCID = last,
> }
> parent.dict.Alt = pdfunicode(label ~= "" and label or "image")
Many thanks for your reply, Hans.
This fixes the issue.
>> It is the same for alternative texts in formulas for PDF/UA-1.
>
> you can play with
>
> -- Alt = alternate,
> NS = namespace,
> ActualText = actualtext or nil,
>
> Alt = actualtext or nil,
> NS = namespace,
> -- ActualText = actualtext or nil,
>
> and such to see if your viewer does soemthing useful
I get an /Alt key automatically generated by ConTeXt, but I get:
18 0 obj
<<
/K [ 19 0 R ]
/P 15 0 R
/Pg 1 0 R
/S /formula
>>
endobj
19 0 obj
<<
/K [ 23 0 R ]
/P 18 0 R
/Pg 1 0 R
/S /formulacontent
>>
endob
23 0 obj
<<
/AF 22 0 R
/Alt <FEFF...DC50>
/ID (math-0001)
/K [ 2 ]
/P 19 0 R
/Pg 1 0 R
/S /math
>>
endobj
/Alt is in object 23 and it needs to be in object 18 (which is tagged as
/Formula), how do I get that?
Many thanks for your help,
Pablo
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