1. First, we open the PPT to be edited, click the Insert command, select a rectangle and insert a rectangle to cover the position where the mosaic needs to be added, and set the shape outline as the outline.
2. Then we select the picture in this page, select the shape again, and execute the one key-one key special effect-shape clipping command.
3. Then, we select the rectangle in this page and execute the onekey-ok command to select the image mosaic option.
4. Then we Enter the value 12 in this page and press Enter. Then check the image effect and delete the rectangle.
5. Then we perform ctrl+a Select All, and perform ctrl+g combination in this page. Right-click and select Image as the save command to save the image.