TeX was designed when things like object oriented programming were virtually at a research stage, far from being common. So parsing and translating is probably non-trivial.Īnd that’s just one problem. It’s also probably a non-trivial task since a) there are a bazillion LaTeX packages out there which all use their own syntax constructs and b) Tex/LaTeX was never designed with a clear XML-like structure in mind. But translating the LaTeX syntax-constructs into tags has never been done. ![]() The irony is that a LaTeX-document itself is already a quite structured document. There are other requirements than just tagging alone, but this is the biggest obstacle. pdfTeX is probably the right place to target, but I do not see this happening anywhere anytime.Ī lot of institutions nowadays require accessible documents for publication. LaTeX or TeX in general cannot generate PDF documents with tags. Sure this goes somehow against the original idea of a PDF (you see what you print), but then again, originally 86-DOS was thought of as a quick hack for a computer kit, and we know how it all ended. Then the kindle can extract the text from the tagged PDF, reflow it according to your screen size, display it in a font you chose, and modify it in other ways suitable to the reader. It also allows for things like reflow, i.e. It also allows to display information about included elements, such as an alternative text for a graphic. This allows screen readers to extract information out of the document and read it out loud to the visually impaired. Something like (very much simplified here): What this means is that in addition to the printable graphical description of the content, all content should be additionally included in a tagged, somewhat primitive XML-like structure. ![]() After being a half-open format for quite some time, PDF is nowadays an official ISO standard. And the specification of PDF requires accessible PDFs to be tagged. Whereas the 90s saw a quick and uncoordinated development with various technologies that didn’t really account for folks with disabilities, fortunately nowadays developments take that into account.įor example PDF files. Īccessibility is becoming more important nowadays.
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