30 Mar 07 Reduce the size of your PowerPoint files

Convert PowerPoint to Flash can reduce 90% of the PowerPoint file!!
Use the tool PPT2FLASH
http://www.ppt-to-dvd.com/powerpoint-to-flash.php?sid=4
Other methods
Reduce the size of photos .Digital camera photos often are very large.
Compression
There’s more to the Photo Album thing yet - if you started with high resolution images, you’ll find your Photo Album presentation saves to a huge size - if you want to email it to others,follow these steps:
Right-click any picture (actually an AutoShape with a picture fill) and choose Format | AutoShape.
Choose the Picture tab in the resultant tabbed dialog box and click the ‘Compress’ button.
Change the resolution to Web/Screen and choose to apply to all pictures in the document (presentation). Click ‘OK’ and then ‘Apply’ to the next dialog box. Click OK again.
Resave the presentation.
If you have the time and want the album to be smaller, try to save photos in a smaller size (around 400 KB is great). You’ll lose some detail, but the smaller size photos will allow the slide show to load and run faster.
To reduce the size of photos on a PC, use Photoshop or another photo editing software, or go to Programs>Accessories>Photo Editor. Click File>Open and open the photo. Click File>Save As and then decrease the size of the picture by moving the toggle bar closer to “smaller file/low quality.” Rename the picture something you’ll recognize as the smaller sized photo (SmallBasketballTourn.jpg, for example). Make sure you save the photo to your project folder, and then click OK.