Handles appear in a rectangular formation around an object when it is selected (Figure 4.16). These handles have various functions:
The handles that appear to the right and left center of the object affect the object's horizontal scale by making it wider or narrower.
The handles that appear at the top and bottom center of an object affect the object's vertical scale by making it taller or shorter.
The handles that appear at the corners affect the object's proportional scale by simultaneously changing its horizontal and vertical size.
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