Zooming in real time
By zooming in real time, you control the zoom at the same time you move your mouse.
1 Do one of the following to choose Real-Time Zoom ():
On the ribbon, choose View > Real-Time Zoom (in Navigate).
On the menu, choose View > Zoom > Real-Time Zoom.
On the Zoom toolbar, click the Real-Time Zoom tool.
Type rtzoom and then press Enter.
Simultaneously press and hold Ctrl + Shift.
2 Click and hold the left mouse button.
3 To zoom in, move the cursor up the screen; to zoom out, move the cursor down the screen.
4 To stop zooming, release the mouse button.