Chris Ashton

dai11y 14/05/2020

Your daily dose of a11y:

WCAG 2.1 and PDF Accessibility

  • Lots of useful reminders. Something that conforms to WCAG 2.1 AA will also conform to WCAG 2.0 AA. Line height should be at least 1.5 times font size; spacing following paragraphs should be at least 2 times; letter spacing at least 0.12 times; word spacing at least 0.16 times. JavaScript inside PDF forms that sets a timer must warn what data will be lost if not completed in time, and/or should allow time extensions.
  • EDIT 21/05/2020: I had misread the article – WCAG does not stipulate that line height should be 1.5 times the font size (nor any of the other rules quoted). Instead it says that if a user sets their own custom style override such that line height is 1.5 times the font size, there should be no loss to content or functionality. Apologies for the confusion – I have now struck out the offending lines above. Thanks to Anika Henke for pointing this out.

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