Do not use images of text on your website except where absolutely necessary or for branding purposes (e.g. logo).
What to do:
- Make sure you don’t have any images of only text
- Avoid images that include text that conveys information if at all possible
- Graphs, screenshots, and diagrams which convey important information of more than just text are probably okay as images
- If you do have an image that includes text, add alt text and potentially a caption or description
Plain English Explanation:
Avoid images of text as much as possible. Logos are fine.
If you do have an image that has text inside it, account for that information with alternative text or a description of the image.
If the same presentation can be made using only text (and not an image), never use an image.