As I go through my team's presentations I take available opportunities to replace bitmaps in those slides with the native graphics features in powerpoint.

 

And then I found this slide:

 

At first I doubted that I could replace the bitmap with native powerpoint graphics, but with a little bit of experimentation I made this:

 

 

I've attached the deck with both slides: PowerPoint-Experiment-(2007-06-03).pptx

Here's the size difference in the slides:

  • With bitmap: 666Kb (681,709 bytes)
  • Without bitmap: 70Kb (70,800 bytes)