Using awfppt to convert from 4:3 to 16:9.

1. Create a new presentation with some example slides using "Add Test Slides" on the "AWF" tab.
2. Change the slide size in "Page Setup"
3. Oh no, all the shapes have been squished!
4. Select all slides
5. Click "Go" on the "AWF" tab, and all shapes are resized (except placeholders)
6. You may still need to manually move the shapes so they look their best, but that's much easier than resizing them.