To zoom in, select the
Zoom tool and
click the area you want to magnify. Each click magnifies the view
to the next preset percentage, centering the display around the
point you click. At maximum magnification, the center of the Zoom
tool appears blank. To zoom out, hold down Alt (Windows) or Option (Mac OS)
and click the area you want to reduce. Each click reduces the view.
To magnify to the next preset percentage, activate the
window you want to view and choose View > Zoom In. To
reduce the view to the previous preset percentage, choose
View > Zoom Out.
To set a specific magnification level, type or choose
a level in the Zoom text box at the lower left of the document window.
To zoom in or out, press Alt (Windows) or Option (Mac OS)
while using the mouse scroll wheel or sensor.
To magnify by dragging, select the Zoom tool and drag
around the area you want to magnify.