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PDF9 Document with headings Screen reader compatibility

Last updated: October 16, 2021

Expected Result: works in a screen reader

Actual Result: causes problems in 18 screen reader / browser combinations

WCAG Technique: PDF9 Providing headings by marking content with heading tags in PDF documents

Code used for this test:


        <a href='SR_PDF_headings.pdf'>SR_PDF_headings.pdf</a>
    

Reliability Trend

This graph shows reliability over time for this code in NVDA, JAWS and Voiceover. Other screen readers don't have enough historical data yet to plot trends.

100%80%60%40%20%0%201520162017201833%201950%202025%202150%

Change History

Last updated: October 16, 2021

Screen readerBrowserModeNotesWhat the user hears
Fail NVDA 2021.2Chrome 94 ReadingOnly finds one heading, reads wrong heading level. Heading level 2, heading 1.
OK NVDA 2021.2FF91 Reading Heading level 1, heading 1. Heading level 2, heading 1.2
Fail NVDA 2021.2Edge 94 ReadingOnly finds one heading, reads wrong heading level. Heading level 2, heading 1.
Fail NVDA 2020.2Chrome 86 ReadingOnly finds one heading, reads wrong heading level. Heading level 2, heading 1.
Fail NVDA 2020.2FF78 ReadingCannot navigate by headings - Firefox accessibility inspector shows role of headings as 'text' and not 'heading' No next heading
Fail NVDA 2020.2Edge 92 ReadingCannot navigate by headings No next heading
Fail NVDA 2019.2Chrome 79 ReadingOnly finds one heading, reads wrong heading level. Heading 1, heading level 2.
Fail NVDA 2019.2FF68 ReadingCannot navigate by headings - Firefox accessibility inspector shows role of headings as 'text' and not 'heading' No next heading
OK NVDA 2019.2IE11 Reading Heading 1, heading level 1. Heading 1.2, heading level 2.
Fail NVDA 2018.4Chrome 73 ReadingOnly finds one heading, reads wrong heading level. Heading 1, heading level 2.
Fail NVDA 2018.4FF60 ReadingCannot navigate by headings - Firefox accessibility inspector shows role of headings as 'text' and not 'heading' No next heading
OK NVDA 2018.4IE11 Reading Heading 1, heading level 1. Heading 1.2, heading level 2.
OK NVDA 2017.3IE11 Reading Heading 1, heading level 1. Heading 1.2, heading level 2.
Fail JAWS 2021.2107.12Chrome 94 ReadingOnly finds one heading, reads wrong heading level. Heading level 2, heading 1.
OK JAWS 2021.2107.12FF91 Reading Heading 1, heading level 1 graphic. Heading 1.2, heading level 2 graphic.
Fail JAWS 2021.2107.12Edge 94 ReadingOnly finds one heading, reads wrong heading level. Heading level 2, heading 1.
Fail JAWS 2020.2008.24Chrome 86 ReadingOnly finds one heading, reads wrong heading level. Heading level 2, heading 1.
Fail JAWS 2020.2008.24FF78 ReadingCannot navigate by headings There are no headings on this page
Fail JAWS 2020.2008.24Edge 92 ReadingOnly finds one heading, reads wrong heading level. Heading level 2, heading 1.
Fail JAWS 2019.1912.1Chrome 79 ReadingOnly finds one heading, reads wrong heading level. Heading 1, heading level 2.
Fail JAWS 2019.1912.1FF68 ReadingCannot navigate by headings There are no headings on this page
OK JAWS 2019.1912.1IE11 Reading Heading 1, heading level 1. Heading 1.2, heading level 2.
Fail JAWS 2018.1811.2Chrome 73 ReadingOnly finds one heading, reads wrong heading level. Heading 1, heading level 2.
Fail JAWS 2018.1811.2FF60 ReadingCannot navigate by headings There are no headings on this page
OK JAWS 2018.1811.2IE11 Reading Heading 1, heading level 1. Heading 1.2, heading level 2.
OK JAWS 17.0.2007IE11 Reading Heading 1, heading level 1. Heading 1.2, heading level 2.
OK VoiceOver macOS 11.5Safari 15.0 Reading Heading level 1, Heading 1. Heading level 2, heading 1.2.
OK VoiceOver macOS 10.15Safari 14.1 Reading Heading level 1, Heading 1. Heading level 2, heading 1.2.
OK VoiceOver macOS 10.14Safari 13.0 Reading Heading level 1, Heading 1. Heading level 2, heading 1.2.
OK VoiceOver iOS 14.7Safari iOS 14.7Heading Heading 1, heading level 1. Heading 1.2, heading level 2.
OK VoiceOver iOS 13.3Safari iOS 13.3Heading Heading 1, heading level 1. Heading 1.2, heading level 2.
OK VoiceOver iOS 12.4Safari iOS 12.4Heading Heading 1, heading level 1. Heading 1.2, heading level 2.

Test notes

All tests were carried out with screen reader factory settings. JAWS in particular has a wide variety of settings controlling exactly what gets spoken.

Screen readers allow users to interact in different modes, and can produce very different results in each mode. The modes used in these tests are:

In the "What the user hears" column: