1. An image editing method comprising the steps of: displaying a frame on an image; inputting an instruction to move the displayed frame; and arithmetically operating a movement amount and a magnification/reduction ratio of the frame in accordance with the instruction input in said input step, wherein, if the instruction to move the frame excessively over an end of the image is input in said input step, said arithmetic operation step arithmetically operates the magnification/reduction ratio of the frame in accordance with an excess movement amount over the edge of the image so as to reduce a size of the frame.