Abstract: A sewing machine including a presser foot that presses a workpiece, a presser bar that has a lower end allowing detachable attachment of the presser foot; a presser bar vertically moving mechanism that moves the presser bar up and down; a presser bar driver that drives the presser bar vertically moving mechanism; a needle plate that has an upper surface for placing the workpiece; a projecting element that is detachably attached to the presser bar and that is driven up and down with the presser bar as the presser bar is driven up and down by the presser bar driver through the presser bar vertically moving mechanism to form embosses on the workpiece by downwardly pressing the workpiece; and a receiving section that is provided on the upper surface of the needle plate that opposes the projecting element to receive a tip of the projecting element.