{Authoring accessible `Tagged \PDF' documents using \LaTeX} {Ross Moore} {\hyphenpenalty=7000 Several \ISO\ standards have emerged for what should be contained in \PDF\ documents, to support applications such as `archivability' (\PDFA) and `accessibility' (\PDFUA). These involve the concept of `tagging', both of content and structure, so that smart reader\slash browser-like software can adjust the view presented to a human reader, perhaps afflicted with some physical disability. In this talk we will look at a range of documents which are fully conformant with these modern standards, mostly containing at least some mathematical content, created directly in \LaTeX. The examples are available on the author's website (\url{http://web.science.mq.edu.au/~ross/TaggedPDF/}). The desirability of producing documents this way will discussed, along with aspects of how much extra work is required of the author. Also on the above website is a `five-year plan' proposal how to modify the production of \LaTeX-based scientific publications to adopt such methods. This will involve cooperation between academic publishers and a \TUG\ working group. The proposal \PDF\ (\url{http://web.science.mq.edu.au/~ross/TaggedPDF/}\\\url{PDF-standards-v2.pdf}) is itself produced to be fully accessible, complying with both \PDFUA-1 and \hbox{\PDFA-2a} standards. }