Apple Numbers '08 - Manual (Page 172)

172 Chapter 8 Working with Shapes, Graphics, and Other Objects
Masking (Cropping) Images
You can crop images without actually changing the image files by masking parts of
them.
Cropping an Image Using the Default (Rectangular) Mask
You can use a rectangular mask to define the boundaries of an image.
To crop an image using the default (rectangular) mask:
1 Import the image you want to mask (see “Importing an Image” on page 171 for
instructions).
2 Select the image, and then choose Format > Mask. A resizable mask appears over the
image, and some controls appear.
3 To resize the image, move the slider left or right.
4 Refine the mask.
Drag the selection handles to resize the mask. To constrain the mask’s proportions, hold
down the Shift key as you drag the selection handles.
To rotate the mask, hold down the Command key as you drag a corner selection
handle.
Place the mask over the part of the image you want to show. You can click at the edge
of the selected mask and drag the mask. Or you can click in the image outside the
mask and drag the image.
5 To make only the area under the mask visible, double-click the mask, press Return, click
outside the image, or click Edit Mask. The borders of the masked image are dotted
lines.
6 To resize or rotate the masked image, drag or Command-drag its selection handles.
7 To deselect the image and hide the mask controls, click outside the image.
To view the whole image, double-click it. To edit the mask, click Edit Mask.
Resize the mask by
dragging its selection
handles.
Drag the mask to center
it over the part of the
image you want to show.
Drag the slider to resize
the image.
Click to show or hide the
area outside the mask.