Adding Alt Text in Wordpress

In Wordpress, you can add alt text to images when you upload them, or after the fact in the editing window.

When you first upload them, in the Media Library. Please don't worry about the other fields so much as the Alt Text field.

Shows image being edited in Wordpress Media Library

After they are already on the page, by clicking on the editing icon (1) and then filling out the correct field (2).

Shows icon to edit image in Wordpress editing window Shows image being edited in Wordpress editing window