Before we get into how you can add a placeholder within individual slide layouts, let us first explore what a placeholder is. 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 dotted border around them.
Learn how to add new placeholders within Slide Layouts in PowerPoint 2010 for Windows.

