Apparatus, method and computer readable recording medium for arranging a plurality of items automatically in a canvas

An apparatus arranges a plurality of items automatically in a form of collage in a canvas while maintaining the original size ratio between the items. The apparatus includes: an arrangement position selecting unit determining a position of a cell which is divided to arrange a k-th item among the respective cells having k−1 items arranged therein in the canvas; a cell dividing unit dividing a cell region of the position determined by the arrangement position selecting unit; an item arranging unit arranging the k-th item at the position of the divided cell; and a first canvas size adjusting unit increasing an entire size of the canvas as needed in the case in which a space to be arranged is insufficient when the item arranging unit arranges the k-th item at the position of the divided cell.