6/ 12

Then remember to open the small lock in the lower right corner, because if it is a background, you can't delete the matting, it will be transparent.

7/ 12

When you click the small lock, it becomes a layer so that you can delete the deselected part.

8/ 12

Press the "Delete" key to delete, and the deleted part will become transparent.

9/ 12

Then click "Save" in "File".

10/ 12

Select the storage place, and remember that the format should be PNG.

1 1/ 12

Then the PNG option will pop up, and click OK.

12/ 12

In this way, the clipping map is saved separately.