We show you how to compress a PowerPoint slide, and reduce its file size. The more info you add, the more the size increases; esp. videos, audio, and images.

To decrease file size, you must compress the PowerPoint slideshow. The easiest and most effective way to do this is to compress the images and then archive the slideshow.

Use the new PowerPoint 2007 format, which uses the PPTX file extension. It's a lot smaller than the old PPT format. Compress your images for the screen.

If you've ever tried to email a Powerpoint presentation or grab it on your USB drive for quick transport, you know that the poorly compressed images within the .ppt file tend to really bulk it up ...