A placeholder is a boilerplate container that you can use to fill in with some sort of content. When you launch PowerPoint, you will see those distinctive boxes that invite you to add some content — haven’t you noticed the “Click to add title” suggestions? All these boxes are placeholders — when selected, these boxes have a grey border around them. You can add your own custom placeholders to the various slide layouts in PowerPoint.
Learn how to add new placeholders within slide layouts in PowerPoint 2011 for Mac.

