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The PDF Association celebrates its members’ public statements
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for ISO-standardized PDF technology.

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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 Working Group and PDF Association Announce PDF/raster: The Next-Generation Format for Imaging

August 2017 by PDF Association staff
News


PDF/raster, a strict subset of the PDF format, was designed for storing, transporting and exchanging multi-page raster-image documents, especially scanned documents. PDF/raster provides the portability of PDF while offering the … Read more

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August 2017 by PDF Association staff
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The latest release of veraPDF, the industry-supported PDF/A validator, is now available for download.

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August 2017 by PDF Association staff
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The International Organization for Standardization (ISO) has announced the publication of ISO 32000-2 (PDF 2.0), the latest version of the … Read more

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July 2017 by PDF Association staff
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Replacing AIIM at the US TAG Administrator and secretary for ISO TC 171 SC 2, the 3D PDF Consortium, a … Read more

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July 2017 by PDF Association staff
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The PDF Association, a not-for-profit organization designed to foster universal public standards for PDF technology, today announced the publication of … Read more

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June 2017 by PDF Association staff
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Version 1.6 features the ability to check for updated software, among other enhancements and corrections.

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June 2017 by PDF Association staff
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Australia adopts the complete set of PDF standards as Australian National Standards.

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May 2017 by Alexandra Oettler
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The new PDF Association publication PDF/X in a Nutshell is available online.

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February 2017 by PDF Association staff
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It is now proven that the contents of a PDF hashed with SHA-1 can be changed without invalidating the signature, … Read more

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February 2017 by Duff Johnson
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The veraPDF consortium has completed PREFORMA’s prototyping phase, and has been awarded the contract for the final six month testing … Read more

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February 2017 by Duff Johnson
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The first post-Adobe ISO standard for PDF technology creates new opportunities for developers of electronic document software. Berlin, February 2, … Read more

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