PS if can flexibly use shortcut keys to control the size of the image it will be very helpful to improve the work efficiency, the commonly used control size below to share with you the shortcut:

(1) the zoom tool of Z,

(2) "Ctrl + spacebar to zoom tool," "of" Alt + spacebar to narrow tool, we only used with the mouse to click can flexible zoom,

(3) press Ctrl + Alt + "+" and the Ctrl + Alt + "-" can automatically adjust window displayed in full screen zoom,

(4) press Ctrl + "+" and "-" key images can also be used to zoom in and out respectively;