How to Compress Photos in PowerPoint
Follow these steps to reduce the file size of your PowerPoint images.
Open the PowerPoint file containing pictures you want to compress and select the picture or pictures. Select Picture Tools Format. If you do not see the Format tab, make sure you have a picture selected. Select Compress Pictures in the Adjust group. The Compress Pictures dialog box opens. Place a check next to Apply only to this picture if you want to compress the selected picture or pictures. If you clear this checkbox, all images in the presentation are compressed. Place a check next to Delete cropped areas of pictures if you want cropped areas to be deleted. Choose a Resolution. In most cases, choosing Email (96 dpi) is the best selection. Unless you plan to print out quality photos of your slides, this option reduces the file size by the greatest margin. There is little difference in the screen output of a slide at 150 or 96 dpi. Select OK to compress the selected image(s).
