How to Make Pictures Smaller in Powerpoint 10 Strategies to Compress Images in Large PowerPoint Presentations by Avantix Learning Team | Updated July 21, 2020 Applies to: Microsoft® PowerPoint® 2010, 2013, 2016, 2019 and 365 (Windows) There are many strategies you tin use to compress images in PowerPoint presentations to reduce file size. It's common to use built-in pinch features in PowerPoint to make big files smaller just you lot can also reduce image size earlier you insert pictures on your slides. If y'all're using 365, 3D models can cause a significant increase in file size. The post-obit are 10 ways to compress images in PowerPoint presentations: Compress pictures using Compress Pictures on the Ribbon Compress pictures when saving a PowerPoint file Change default compression settings in PowerPoint Options Insert pictures instead of copying and pasting Use i