How to Compress a PowerPoint Slideshow. If you are working on a large PowerPoint presentation that presents multiple slides in a slideshow, the PowerPoint file grows in size with every picture you ...

When you compress your PowerPoint, you'll have to reduce the quality of any music, videos, or pictures you have in your slideshow.

PPTShare is a Windows desktop client that compresses large PowerPoint files by as much as 95%. Huge PowerPoint files have long been a problem, and if the medium is going to see extensive use in ...