- Open the photo album presentation.
- On the Insert tab, in the Illustrations group, click the arrow under Photo Album, and then click Edit Photo Album.
- Under Picture Options, select the Captions below ALL pictures check box.
Note If the Captions below ALL pictures check box is unavailable, you must first specify a layout (layout: The arrangement of elements, such as title and subtitle text, lists, pictures, tables, charts, AutoShapes, and movies, on a slide.) for the pictures in the photo album. To specify a layout for your pictures, under Album Layout, in the Picture layout list, select the layout that you want. To adjust the picture so that it does not fill the entire slide, under Album Layout, in the Picture layout list, select any option except Fit to slide.
- Click Update.
Note By default, PowerPoint uses the picture file name as a placeholder for the caption text.
- In Normal view, click the caption text placeholder, and then type a caption that describes the picture.