1, first right-click the picture-select Properties-and view the file size at this time.

2. First, right-click the picture-select the opening mode-draw-as shown below.

3. Find the image in the menu-select Stretch/Twist-as shown below.

4. Set the values in the horizontal and vertical columns to 40%, just click OK.

5. Right-click the picture again-select Properties-view the modified size of the file-at this time, the file is only 176KB.