Open the presentation that you would like to be optimized
The size of the presentation appears on the right side of the “Home” tab
Click on the arrow to launch PPT optim.
The add-in optimizes the size of the images. It can also convert charts and embedded objects to images to reduce file size (uncheck if you don’t want it)
PPT optim starts and displays an event window. The operations can take from a few seconds to about one minute (for large powerpoint file with hundreds of slides)
At the end of the process a windows displays the size of the original presentation and the size of the optimized presentation. The optimized presentation is saved in the same directory as the original, with “(optim)” at the end of the name