Tagged mathematics in PDFs for accessibility and other purposes.
Ross R. Moore · 2013
Abstract. PDF has been the preferred format for publishing mathematics for many years now. With changes to methods of delivery (i.e., electronic rather than predominantly paper) there need to be corresponding enhancements in the document format. Not least among these can be implicit legal obligations to satisfy Accessibility criteria. The answer developed for PDF is tagging of document structure and content types, as described in the PDF/UA Implementation Guide [4]. Wikipedia describes this as “not a separate file-format but simply a way to use PDF ” [12], which when supported “reader software will be able to reliably reflow text onto small screens, provide powerful navigation options, transform text appearance, improve search engine functionality, aid in the selection and copying of text, and more ” [12]. Academic publishers are starting to see these benefits and will doubtless soon require at least minimal tagging of online PDF documents for Accessibility purposes, in a similar way to how Accessibility tags have been incorporated