> Just remember that it is IMPOSSIBLE to create a PDF/UA compliant document > (for the normal cases of document) w/o human intervention. This is, > unfortunately, by design in PDF/UA - and accessibility in general (WCAG > has the same issue).
That's such a strange way to put it! "Accessibility has the same issue." Really? Accessibility is a set of specific feature requirements, no more, no less. I agree, they are in many cases onerous, but that's not fortunate or otherwise, it just IS. Many aspects of our favorite file format have "unfortunately, by design" issues, do they not? It's just part of the job, no? I addressed the subject of human validation this post, as it is indeed a KEY point in choosing when and how to enable PDF/UA flagging in output files: http://duff-johnson.com/2013/02/14/warning-human-judgment- required-for-pdfua-conformance/ > Some things, such as Alt text for images, has to be > provided by humans and can't be auto-generated. Not to mention that proper reading order and correct semantics have to be verified by humans at some point (I emphasize that last) in the workflow. That's because software alone is perfectly capable of ordering stuff backwards and tagging tables as figures. Implementation is another matter. Go ahead and invent smarter auto-tagging and validation-assist software; plenty of people will buy it. > My question was how useful putting stuff into the PDF itself (in the form > of Matterhorn) mattersŠ Well, you might guess that I think it's VERY important! ;-) The reason is simple. As you pointed out, validation involves humans, and that's expensive. Matterhorn addresses the problem by making validation data interoperable. Duff. ------------------------------------------------------------------------------ The Go Parallel Website, sponsored by Intel - in partnership with Geeknet, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials, tech docs, whitepapers, evaluation guides, and opinion stories. Check out the most recent posts - join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions iText(R) is a registered trademark of 1T3XT BVBA. Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/ Please check the keywords list before you ask for examples: http://itextpdf.com/themes/keywords.php
