Multistandard PDF

Multistandard PDF

[Robin Schwab]

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Hi,
I am looking for a LaTeX system that can create accessible PDF so I 
tried ConTeXt.
In current ConTeXt it seems to be impossible to specify more than one
\setupbackend[format

Minimal example:
\setupbackend[format={pdf/a-3a,pdf/ua-1,pdf/x-4}]

\starttext

\input knuth

\stoptext

I get an error:
backend > profiles > error, format 'pdf/a-3a,pdf/ua-1,pdf/x-4' is not 
supported

Why should I have to choose whether my PDF is accessible to search 
engines, the disabled or the print-shop? Shouldn't everybody be able to 
access my document?

Regards

Robin


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Re: Multistandard PDF

[Hans Hagen]

On 2/27/2020 3:19 PM, Robin Schwab wrote:
> Hi,
> I am looking for a LaTeX system that can create accessible PDF so I 
> tried ConTeXt.
> In current ConTeXt it seems to be impossible to specify more than one
> \setupbackend[format
> 
> Minimal example:
> \setupbackend[format={pdf/a-3a,pdf/ua-1,pdf/x-4}]
> 
> \starttext
> 
> \input knuth
> 
> \stoptext
> 
> I get an error:
> backend > profiles > error, format 'pdf/a-3a,pdf/ua-1,pdf/x-4' is not 
> supported
> 
> Why should I have to choose whether my PDF is accessible to search 
> engines, the disabled or the print-shop? Shouldn't everybody be able to 
> access my document?

You should choose one of these standards, not multiple of them.

Hans

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Re: Multistandard PDF

[Pablo Rodriguez]

On 2/27/20 3:19 PM, Robin Schwab wrote:
> [...]
> Why should I have to choose whether my PDF is accessible to search
> engines, the disabled or the print-shop? Shouldn't everybody be able to
> access my document?

Hi Robin,

I may be missing your point, but consider the following: you are setting
a format or a format version.

AfaIk, documents that contain file format information inside only allow
one format. They may be compilant with other formats (or versions of the
same format), but this is something else.

With PDF versions and standards, this goes the same way. You might have
a PDF-1.7 document that only uses features already defined in PDF-1.4.
Also you might have a PDF/A document with features already available in
PDF/UA and PDF/X.

But in any case, you only have one field for document version (or standard).

Just in case it helps,

Pablo
--
http://www.ousia.tk
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