How to Add a Callout to a Slide in PowerPoint Share January 23, 2020 Dm4r Technology Callouts are a great resource for emphasizing a specific point you want to highlight within your PowerPoint presentation—especially when that slide is visually heavy. They can be added to a slide in just a few simple steps. Here’s how. Read This Article on How-To Geek › Source : How to Add a Callout to a Slide in PowerPoint