To see alt text in a completed PDF document, you'll need to use a screen reading app, which is an accessibility tool for visually impaired users. PDF documents should contain alt text for each image, ...

Alternative text, or alt text, is a short description of an image that users will not typically see unless they use an assistive technology or the image does not load on the page. Every image should ...

Google’s John Mueller and Lizzi Sassman discuss creating image alt text that’s good for those using screen readers, briefly touching on what to do about decorative images and how it’s tricky to write ...

In a Google Office-hours hangout, Google’s John Mueller answered a question about how to use alt text for SEO. Along the way he dispelled the idea that there is a 16 word limitation on alt text and ...