When you have a picture that fits awkwardly on your PowerPoint slide, leaving a lot of whitespace, consider turning it into picture. You can use this neat trick to make it look like a Polaroid photo. Give it a try! (Update: Miguel Monteiro at Tribe Presentations points out you can create the shadow with a black semi-transparent fill (see examples here and here). Then it works on any color background and even textured backgrounds!)
About the author: Bruce Gabrielle is author of Speaking PowerPoint: the new language of business, showing a 12-step method for creating clearer and more persuasive PowerPoint slides for boardroom presentations. Subscribe to this blog or join my LinkedIn group to get new posts sent to your inbox.