Display apparatus, displaying method and computer readable medium

摘要

The display apparatus is provided with: a display that displays a raw image and an identification image by which an electronic document is identifiable within a screen including at least two areas, the raw image representing a content of the electronic document, the identification image being smaller than the raw image; a detection unit that detects a moving operation of the raw image displayed in a first area to a second area that is different from the first area; and a controller that controls the display to display the identification image in the second area in response to the detection by the detection unit.