1.4.9 Images of Text (No Exception) Level AAA

Images of text are only used for pure decoration or where a particular presentation of text is essential to the information being conveyed.

Logotypes (text that is part of a logo or brand name) are considered essential.

[View on W3C.org]

Testing & Remediation

How to test: Look over your site to ensure that there are no images of text. The only acceptable use for images of text are when it's used purely for decoration or if the text is essential to the info being presented (eg. a company logo with their name in it) How to remediate: There are a number of techniques to satisfy this success criteria, including:
  • Using CSS to control the visual presentation of text
  • Using Silverlight font properties to control the text’s presentation
  • Using CSS to replace text with images of text and providing UI controls to switch/customize the text
  • Separating information and structure from the presentation to enable different presentation of the text
  • Performing OCR on a scanned PDF to provide real text

Questions and Answers

Minimum font size?

I like the look of smaller text on the web. And even if the text is pretty normal size, some subheadings or small bits of info look nice if they are much smaller (thinking 12px or so). Is there a minimum font size that is...

Are animated gifs okay to have?

If I have a gif on a site that loops continuously. Is that okay or does it violated the 'can't have repeating flashing stuff' rule?