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Techniques for Accessible PDF: Headings

April 2025 by PDF Association staff

Headings are vital in organizing document content, especially with longer or complex documents. For assistive technology, the correct use of headings allows what would otherwise be an undifferentiated stream of text to become a navigable document in which readers can quickly find the content they want to read, and skip the content they don’t want to read.

Getting headings right is especially important with PDF documents, which can be very long, and may include deeply nested headings, multiple documents, document fragments, and more. Accessibility techniques for headings may therefore differ from techniques that are applicable to other technologies such as HTML.

On this basis the PDF Association is pleased to announce its second release of Techniques for Accessible PDF covering headings.

TWAIN Direct with PDF/Raster released

September 2019 by PDF Association staff (TWAIN Working Group)
News


The TWAIN Working Group, a liaison member of the PDF Association, has just announced the release of TWAIN Direct, their next-generation open source image-acquisition technology. As the TWAIN Direct website … Read more

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August 2019 by PDF Association staff
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SQL Server’s Reporting Services will soon support the ISO standard for accessible PDF.

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July 2019 by Duff Johnson
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After an impressive effort the Mueller Report is now available as a free EPUB file. What might have been in … Read more

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July 2019 by PDF Association staff
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The Open Preservation Foundation, a PDF Association liaison member, has announced the 1.14 release of the open source, industry-supported PDF/A validator, part … Read more

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January 2019 by Matthias Wagner
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Welcome to the brand new PDF Association website. This sweeping relaunch has a modern and user-friendly interface and offers interesting … Read more

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November 2018 by Duff Johnson
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This event allows those engaged with electronic document technology focusing on developers, product managers, professional document users, creative professionals and … Read more

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November 2018 by PDF Association staff
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Anticipating the new Japanese era name, the Unicode Consortium announced its reservation of U+32FF for this purpose. PDF developers should … Read more

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November 2018 by PDF Association staff
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The PDF and the User survey is back for a fourth year. This survey is designed to capture the perceptions … Read more

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October 2018 by PDF Association staff
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This Application Note provides technical background to the definition of Associated Files in PDF 2.0. It is intended for developers … Read more

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October 2018 by PDF Association staff
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The PDF Association has started to overhaul its website, with the first such change being a new search engine, installed … Read more

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September 2018 by PDF Association staff
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New in PDF 2.0, black point compensation (BPC) is a colour management technique allowing for the alignment of the darkest … Read more

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