Abstract: A computing device detects movement of two contact positions on a touchscreen of the computing device as a pinch-to-zoom gesture. While detecting the movement of the two contact positions on the touchscreen, the computing device detects a third stationary contact position on the touchscreen of the computing device, as a centering gesture related to the pinch-to-zoom gesture. The computing device performs a zooming operation corresponding to the pinch-to-zoom gesture in relation to an image displayed on the touchscreen so that the image remains centered at the third stationary contact position corresponding to the centering gesture while the zooming operation is performed.