The image is cropped by the amount entered in these boxes. When Keep image size is selected, cropping produces enlargement (for positive cropping values), shrinking (for negative cropping values), or distortion of the image so that the image size remains constant.
When Keep scale is selected (default), cropping the image does not change the scale of the picture. In the Crop page, you can control the following parameters: The options available when cropping a picture
