The typical visual indicators denoting headings of various levels (font size, weight, color, etc.) help readers to quickly locate content of interest, especially in longer or highly structured content. So which is it? Should authors and remediators tag document titles with or with, or maybe something else? And what are the consequences of one or the other choice? The role of headings Since headings commonly appear in tables of contents, and since document titles do not normally appear in tables of contents, a future-proof (PDF 2.0) approach would be to use a structure type (which is defined in PDF 2.0, see Annex B) mapped to the structure type." If structure elements are used to enclose such content, it is recommended that only one such instance of the title be structured as. Page content representing the title can - especially in publications - appear several times in the document.
"Since PDF/UA-1 does not require any specific structure type for title content, it is permissible to structure such content with either or other structure element types (typically, or structure element types mapped to ). The Tagged PDF Best Practice Guide: Syntax, in clause 4.2.2.2, states as follows: NOTE: For readability I will use the common term “tag” to refer to PDF’s standard structure types.
This article, authorized by the PDF/UA TWG, sets out to answer them. Since its publication the Guide’s recommendations for document titles have generated some questions. The guide is also useful to those generating tagged PDF to create accessible documents. In the summer of 2019 the PDF Association’s PDF/UA Technical Working Group released Tagged PDF Best Practice Guide: Syntax - to provide developers and expert users with formal advice and best practices for implementing tagged PDF.
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