Image Captions are the visible text that visitors see underneath images when they are enlarged. Image ALT Tags are used “behind the scenes” and are added to the HTML of a site. Since search engines like Google can’t visually "see" an image, ALT Tags provide a text alternative to help search engines properly identify and index photos on your site for better search results. Alt Tags are often used by Screen Readers to assist the visually impaired.
Here's how to add both Image Captions & ALT Tags to images on your site.
STEP 1
Hover over any photo in your image library and click the "View" icon.
STEP 2
Click "Edit Caption & ALT Tag" on the bottom right corner of the enlarged image.
STEP 3
Insert a Caption and ALT Tag in the space provided. Click "Save" when you are done.
Note: Use the "Mark as Decorative" option if you want screenreaders for the visually impaired to ignore the image entirely as if it wasn't on the site at all. Click "Save" when you are done.