... file size using 6 different techniques to compress PowerPoint images, videos, ... 5. Wait as PowerPoint compressing your vidoes. Example of how much space ... I inserted and compressed in my PowerPoint presentation, I saved 872.5 MB.. Apr 1, 2020 They shouldn't be larger than 5Mb and ideally much smaller: around 1Mb is fine, or you can resize your pictures to 1,000 pixels across and.... In fact, your images are probably taking up 99% of your page size. ... If you simply upload photos that