Alternative text provides a textual alternative to non-text content in web pages and PDFs. Screen readers cannot analyze an image and determine what the image presents.
Alternative text serves several functions:
- It is read by screen readers in place of images allowing the content and function of the image to be accessible to all.
- It is displayed in place of the image in browsers if the image file is not loaded or when the user has chosen not to view images.
- It provides a description to the Image which can be read by search engines.
Open the Touch up Reading Order Tool; Highlight the image; choose Figure; right click the image and Edit Alternate Text by adding descriptive text.
Every image must have an alternate information. Images without an attribute are inaccessible.