[dvipdfmx] option to suppress the Info dictionary

[Ulrike Fischer]

I don't own the standards. So I mostly go along by what I find on the 
internet and  by testing a document with verapdf or adobe
and then try to figure out what the failures means.

I collected the current state in l3pdfmeta:
http://mirrors.ctan.org/macros/latex/contrib/pdfmanagement-testphase/l3pdfmeta.pdf


You can also find informations about the requirements (until pdf/A-3) 
in the pdfx documentation.

The most important part is to embed fonts,
a color profile and to avoid certain actions.

Ulrike
 

> It's possible to implement such an option but instead of adding
> a dedicated option just for suppressing the /Info dictionary,
> (if possible) I'd like to consider adding a more generic option to
> ensure some of the requirements from the A (or X) standards.

> I know it's technically not possible for dvipdfmx to entirely
> guarantee compliance to those standards, so it will be just for
> small parts of requirements such as font embedding.

> Please let me know if there's anything other than the removal
> of the /Info dictionary which is required for generating PDF/A-4
> compliant PDFs.


> Thanks,
> Shunsaku Hirata

> 2022年5月11日(水) 1:19 Ulrike Fischer <news3 at nililand.de>:
>>
>> pdf 2.0 deprecated the /Info dictionary and the accompanying
>> A-standard, pdf A-4, requires to drop it completly, forcing it to
>> be empty is not enough.
>>
>> Under special conditions the info dictionary is still allowed
>> but then it should at most contain a /ModDate entry.
>>
>> Could an option to suppress the entry completly or to restrict it to
>> /ModDate be added?
>>
>> (I tried to suppress entries by setting them to null, which works for
>> some of the entries but not for all, e.g. /Producer is filled up with
>> the default value by dvipdfmx)
>>
>> Ulrike