Zoom
You can zoom in to get a close-up view of your keyboard, or zoom out to see more of the desktop. This feature lets you change the keyboard size without editing it.
Fit width
You can automatically scale the on-screen keyboard to match the screen width. This feature is useful if you frequently switch the screen between the portrait and landscape modes.
Width
The keyboard width scaling ratio. You can resize the keyboard window in the usual manner, by dragging its edge with the mouse.
Fit height
You can automatically scale the on-screen keyboard to match the screen height. If this option is used together with Fit width, the keyboard will fit the screen size.
Height
The keyboard height scaling ratio.
Lock aspect ratio
If this ratio is locked, the keyboard’s width will be scaled in the same proportion as its height (and vice versa, the height will be scaled in the same proportion as the width).
Lock window size
You can prevent the keyboard from resizing.
Pinch or stretch to zoom when using a touchscreen
To zoom in or out, touch the on-screen keyboard with two fingers, and then move the fingers toward each other (pinch) or away from each other (stretch). Note: Windows 7 and above.