First, a single picture compression
1. Select the picture to open PPT, then select the picture to be compressed, and click [Format]-[Compression] function.
2. The compression function will pop up such a window at this time, you can compress the selected picture by ticking [Only quote this picture] and [Use document resolution].
Second, all picture compression If you want to compress all the pictures in the entire PPT, use the method above, and then uncheck [quote only this picture].
1. Save As Open the PPT first, and then click [File]-[Save As]-[Browse], and the Save As window will pop up.
2. Tools There is a tool option at the bottom of this window. Click on it and find the [Compress picture] function in the drop-down menu. In the pop-up window, select [Delete cropped area of picture] and [Use document resolution] This way the pictures of the entire document are compressed.