Formatting pictures in PowerPoint can make it easier to personalize your presentation.
You'll need to monitor the file size of your presentations that include pictures, especially if you send them via email. Large high-resolution pictures can quickly cause your presentation to become too large, which may make it difficult or impossible to attach to an email. In addition, cropped areas of pictures are saved with the presentation by default, which can add to the file size. PowerPoint can reduce the file size by compressing pictures, lowering their resolution, and deleting cropped areas.