To add alternate text to a shape or SmartArt graphic with an image fill:1) Right-click on a shape or the border for the whole ...

To add alternate text to a shape or SmartArt graphic with an image fill:1) Right-click on a shape or the border for the whole graphic, and click Format.2) Click Size & Properties.3) Expand the Alt Text section.4) Type a description of the image into the Title and Description boxes.