I saw that there is a typo in the example from contextgarden.
This one is correct:
\setupbackend[
format={pdf/a-1b:2005},
profile={default_cmyk.icc,default_rgb.icc,default_gray.icc},
intent=Coated FOGRA39 (ISO 12647-2:2004),
level=0]
\setupstructure[state=start,method=auto]
\setupbackend[export=yes]
\setupexternalfigures[location=default]
\starttext
\startPDFalternativetext{this is a cow}
\externalfigure[cow]
\stopPDFalternativetext
\stoptext
But again, Acrobat Reader > Document Properties > Tagged PDF > No
Steffen
When running the test with an older (2022.07.06 21:42) LMTX
and opening the PDF with Acrobat Reader, checking the Document Properties “Tagged PDF?” it says “Yes”!
Steffen
No. I tested it (and added also the backend stuff) ...
\setupbackend[
format={pdf/a-1b:2005},
profile={default_cmyk.icc,default_rgb.icc,default_gray.icc},
intent=Coated FOGRA39 (ISO 12647-2:2004),
level=0]
\setupstructure[state=start,method=auto]
\setupbackend[export=yes]
\setupexternalfigures[location=default]
\starttext
\pdfalternativetext{\externalfigure[cow]}
{alternate description}
\stopPDFalternativetext
\stoptext
… but when opening the PDF with Acrobat Reader and checking the Document Properties “Tagged PDF?” it says “No”.
(Even though it is recognised as PDF/A)
Thanks for having tried! I unfortunately know nothing about how Acrobat Readers checks for a tagged PDF, so I'll refrain from trying to propose solutions - which would likely not work.
Cheers,
Florent
No. I tested it (and added also the backend stuff) ...
\setupbackend[
format={pdf/a-1b:2005},
profile={default_cmyk.icc,default_rgb.icc,default_gray.icc},
intent=Coated FOGRA39 (ISO 12647-2:2004),
level=0]
\setupstructure[state=start,method=auto]
\setupbackend[export=yes]
\setupexternalfigures[location=default]
\starttext
\pdfalternativetext{\externalfigure[cow]}
{alternate description}
\stopPDFalternativetext
\stoptext
… but when opening the PDF with Acrobat Reader and checking the Document Properties “Tagged PDF?” it says “No”.
(Even though it is recognised as PDF/A)
Steffen
Hi,
It seems that the accessibility page has moved here:
https://wiki.contextgarden.net/Input_and_compilation/Accessibility .
Maybe the last example is suitable?
(It seems to correctly embed the alt text in the pdf; this can be checked by using the `--nocompression` flag and opening the resulting pdf with a text editor. Not sure how to have the alt text in the exported html, though; I'm sure others will be able to advise on that better than I could.)
Best,
Florent
Hi,
today my publishers ask for an example of how ConTeXt deals with accessibility.
I send them a PDF with
\setupbackend[export=yes]
\setupstructure[state=start,method=auto]
What they needed was like
<img src="example.jpg" alt="Example text">
What is the equivalent for this with ConTeXt?
Contextgarden ( https://contextgarden.net/Accessibility) is empty...
Yours, Steffen
> Am 23.09.2024 um 17:09 schrieb Hans Hagen via ntg-context <ntg-context@ntg.nl>:
>
> On 9/23/2024 8:02 AM, Pablo Rodriguez via ntg-context wrote:
>> On 9/22/24 21:58, Hans Hagen via ntg-context wrote:
>>> On 9/22/2024 2:43 PM, Pablo Rodriguez via ntg-context wrote:
>>>
>>>> It would be great to have synonyms added the /E information by default.
>>>> I think this may be a requirement for text-to-speech conversions.
>>>
>>> even more crap .. let's wait till abbreviations are completely forbiddeb
>>> (and also units and such )
>> From what I see, /E may be helpful (similar to /ActualText).
>
> Imo it's useless:
>
> (1) normally when a new abbreviation is intriduced one has the expanded meaning after it
> (2) after that it is suposed to be known
> (3) if one jumps into a document in the middle one cannot expect it to be repeated every time
> (4) if that *is* expoected there is no need to use abbreviations at all
> (5) so, why should a 'read out' document have all abbreviations with an expanded meaning and a typeset text not
>
>> For me, the real problem with accessibility (and penalties for
>> non-accessible documents) is that it will force all documents to be
>> machine-readable (so we have to feed AI with all our public documents,
>> whether we like it or not).
>
> i assume that such a machine learning or pattern recognotion app can quite well figure out that it's an abbreviation
>
>> I mean, no such as "\enabledirectives[backend.pdf.nounicode=❌]" allowed.
>
> well, everything is allowed ... after all why do we typeset and visualize otherwise ... it depends on the audience
>
> one can always generate multiple versions, one with two times the number of pages and all expanded
>
> Hans
>
>
>
> -----------------------------------------------------------------
> Hans Hagen | PRAGMA ADE
> Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
> tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -----------------------------------------------------------------
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
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> wiki : https://wiki.contextgarden.net
> ___________________________________________________________________________________
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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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wiki : https://wiki.contextgarden.net
___________________________________________________________________________________
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist :
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If your question is of interest to others as well, please add an entry to the Wiki!
maillist :
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