Re: [docbook-apps] tagged and accessible PDF document with DocBook

[Tony Graham <tgraham@antenna.co.jp>]

On 03/04/2017 21:12, Holger Bast wrote:
...
> Here are some of my resources, maybe they can help you:

I've added some late-in-the-day thoughts...

> The following document gives a short overview how xml structural
> information can be applied to pdf. The document contains also a list
> of elements that should be tagged (see table 1)
> https://pdfs.semanticscholar.org/9a51/cd67046a81d4e02d6b4b35fa402bacc892f8.pdf

That looks a bit dated, since the latest PDF version that it refers to
is 1.4. You can get better tables of PDF Tag names in the free version
of the ISO 32000-1 PDF standard that you can download from the Adobe web
site.

>  PAC 2 - PDF Accessibility Checker (PAC 2) PAC is an easy to use tool
> to check if your pdf document is accessible. If not PAC will show you
> the problems in the structure as well as inside the document.
> http://www.access-for-all.ch/en/pdf-lab/pdf-accessibility-checker-pac.html

Fine for checking one file at a time, but it has a few minor bugs. I
don't expect it to be updated, though, since there's now a commercial
product available that's obviously based on PAC 2.

>  And last but not least the pdf specification document. I didn't read
> the document yet. I try to get my hands on it in the next days. ISO
> 14289-1:2014 - Document management applications -- Electronic
> document file format enhancement for accessibility -- Part 1: Use of
> ISO 32000-1 (PDF/UA-1) https://www.iso.org/standard/64599.html

AFAIK, you can't get this ISO standard for free.

Additional PDF/UA resources:

- PDF/UA Technical Implementation Guide: Understanding ISO 14289-1 
(PDF/UA-1):

http://www.aiim.org/Research-and-Publications/Standards/Committees/PDFUA/Technical-Implementation-Guide

- PDF/UA Technical Implementation Guide: Understanding ISO 32000-1 (PDF 
1.7):

http://www.aiim.org/Research-and-Publications/standards/committees/PDFUA/Technical-Implementation-Guide-32000-1
  Only about some subsections of Section 14, "Document Interchange".

- Achieving WCAG 2.0 with PDF/UA:

http://www.aiim.org/Research-and-Publications/standards/committees/PDFUA/WCAG20-Mapping

- Matterhorn Protocol - list of all the possible ways to fail PDF/AU:
  http://www.pdfa.org/publication/the-matterhorn-protocol-1/

- PDF/UA Reference Suite:
  http://www.pdfa.org/publication/pdfua-reference-suite/

- There's a page on the Adobe website that relates Acrobat's WCAG 2.0
reporting to PDF/UA requirements, but it won't help you much with PDF/UA
conformance.

Regards,


Tony Graham.
--
Senior Architect
XML Division
Antenna House, Inc.
----
Skerries, Ireland
tgraham@antenna.co.jp