100. Zoom In and Out with the Zoom Tool    BEFORE YOU BEGIN     Just jump right in.          SEE ALSO     101 Zoom In and Out with the Navigator Palette      103 Magnify Your Work         Whether you're making changes to a photograph or some artwork you've created yourself, you must be able to view the image clearly to make precise changes. Typically, this means zooming in on some area that doesn't look right so that you can discern the problem, and later zooming back out again to see whether the change you made looks right when the image is viewed at its regular size . To zoom in on an image and back out again, use the  Zoom  tool.      |     1.     |     Select the Zoom Tool    Open an image in the   Editor  and then click the   Zoom  tool in the   Toolbox  .       100. Zoom In and Out with the Zoom Tool         |     |     2.     |     Choose a Zoom Amount    The   Zoom  tool provides many ways in which you can zoom. To view an image at a particular zoom level (such as 50%), select the current percentage in the   Zoom  box on the   Options  bar, type a new percentage, and press   Enter  .You can also use the slider on the   Zoom  box to select a zoom amount by dragging the slider left or right.      TIP    When you're zooming an image in or out to any percentage, you can change the size of the image window to fit the image, up to the available workspace, by first enabling the  Resize Window to Fit  option on the  Options  bar. To allow the image window to expand below free-floating palettes that might be in the workspace, enable the  Ignore Palettes  option. (To temporarily hide free-floating palettes, press  Tab  ; press  Tab  again to make them reappear.) To zoom all open image windows by the same amount, enable the  Zoom All Windows  option. This option works only if you zoom using the  Zoom In  or  Zoom Out  buttons , and not the  Zoom  slider.        |     |     3.     |      Or Click to Zoom      You can zoom by a predetermined amount toward a particular point within an image. First, click the  Zoom In  or  Zoom Out  button on the  Options  bar to determine the direction of the zoom. Then click the point you want to zoom in on (or away from) within the image window.     To zoom in on a particular area of an image, simply drag with the  Zoom  tool to select the area you want to see up close. The selected area is enlarged to fit the size of the image window.        |     |     4.     |      Or Zoom to a Set Size      To view the image at 100% (based on roughly 72 pixels per inch [ppi], or optimum screen resolution), click the  Actual Pixels  button on the  Options  bar. You can also double-click the  Zoom  tool in the  Toolbox  to view the image at 100%. Assuming that a user 's screen resolution is the same as yours, this option displays an image in the same size it will look on somebody else's screen.     To zoom the image as large as possible to fill the workspace, click the  Fit on Screen  button. You can also double-click the  Hand  tool in the  Toolbox  to fit the image to the workspace, and center the image within the window.     To zoom the image to the approximate magnification it will be when you print it (based on the current image resolution), click the  Print Size  button.        |         TIP    To zoom in and out without actually selecting the  Zoom  tool first, press and hold  Ctrl+Spacebar  and click the image to zoom in. Press and hold  Alt+Spacebar  and click the image to zoom out.        |