PowerPoint provides three types of shadows for your slide objects: Outer, Inner and Perspective. You can apply any of these, or customize them to your requirement. The following links provide more explanation about shadows depending upon the version of PowerPoint you may be using:
To learn more, choose your version of PowerPoint. If we do not have a tutorial for your version of PowerPoint, explore the version closest to the one you use.
Microsoft Windows
Apply Shadow Effects to Shapes in PowerPoint 2016
Apply Shadow Effects to Shapes in PowerPoint 2013
Apply Shadow Effects to Shapes in PowerPoint 2010
Apply Shadow Effects to Shapes in PowerPoint 2007
Apply shadow Effects to shapes in PowerPoint 2003 and 2002
Apple Mac
Apply Shadow Effects to Shapes in PowerPoint 2011

Tutorial Code: 08 03 03
Previous: 08 03 02 Apply Preset Effects to Shapes in PowerPoint
Next: 08 03 04 Advanced Shadow Effect Options in PowerPoint
