Re: pdf screen reader accessibility?

[Rasmus <rasmus@gmx.us>]

Marcin Borkowski <mbork@wmi.amu.edu.pl> writes:

> On 2015-04-06, at 13:40, Rasmus <rasmus@gmx.us> wrote:
>
>> Jude DaShiell <jdashiel@panix.com> writes:
>>
>>> http://www.adobe.com/accessibility/products.html
>>> is a good place to start.
>>
>> It's a list of a bunch of software packages of which most are not (i) free
>> in any meaning of the word; and (ii) supported on GNU/Linux.
>
> So what?  IIUC, the OP wants to have something similar using Emacs and
> (maybe) free (in a usual sense, or in FSF sense) software.  Isn't it
> a valid request?

Of course it is, but OP is referring to features of some software that I
don't have access to, so how am I supposed to make sense of it?  I'm not
going to (i) install a new OS; and (ii) buy/torrent software to understand
and test a feature in named software.

If there's a standard I'm eager to hear about it.

> Maybe it's an answer to my question below?
>
> ,----
> | > Do those files by default conform to screen reader accessibility standards 
> | > or can such files be made to conform to screen reader accessibility 
> | > standards?  Since adobe was responsible for creating pdf files Adobe has 
> | > screen reader accessibility standards on its website.
> | 
> | Could you point out these standards (direct links)?
> `----

> (No idea why the OP started a new thread, though.)  In my browser, on
> the right there are some links to general accessibility info (or so it
> seems, I didn't follow them yet).

Thanks.

>>> When a document gets written in Microsoft Word, its language is made
>>> part of that document.  If that document is later converted to a pdf
>>> file that language information is taken in by the conversion process
>>> then becomes the first component that starts to make screen reader
>>> accessibility of a pdf file possible.
>>
>> AFAIK, the language is set as part of the metadata in pdfs in 8.3 based
>> on #+LANGUAGE.  Can you test if that works for you?  If not, what will
>> needed to be changed to make it work?
>
> Quick test using
>
> #+LANGUAGE: polish
>
> or
>
> #+LANGUAGE: pl
>
> showed it didn't work.  (I didn't check the pdf file, though, only
> grepped the LaTeX source.)

Please give an example of how to specify the language, or an example of a
way to test it that can be done easily from GNU/Linux.

With emacs -q and Org 8.3, and a document with "#+LANGUAGE: da" I get:

     $> exiftool test.pdf | grep -i lang
     Language                        : Danish

—Rasmus

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