1. A non-transitory computer-readable medium storing computer-executable programs that, when executed by a processor, cause an information processing apparatus provided with a display unit having a display surface and an operation unit configured to output a signal depending on a user operation, to perform: receiving selection of a target image, on which a trimming operation is to be performed, from among a plurality of thumbnail images in a thumbnail window, the target image being stored in a memory; displaying the target image in a first area of the display surface, the display surface including the first area and a second area different from the first area, the second area having a same size as the first area and positioned adjacent to the first area; specifying a selected area corresponding to a part of the target image based on the signal outputted from the operation unit depending on the user operation with respect to the target image; displaying a selected-area image which is an image corresponding to the selected area that has been specified, in the second area which is different from the first area, with the selected-area image having a size same as a size of the selected area that has been specified and a same relative position within the second area as compared to the selected area in the first area; and storing, in the memory, the target image and the selected-area image upon associating each other; wherein a non-selected-area image, which is another part of the target image and not corresponding to the selected area, is not displayed in the second area.