Objects other than lines, arcs, chords, and pies are automatically added with resize handles, and the default operation available through their pop-up menu is Resize. Any object can be resized, including those with points. However, for lines, arcs, chords, and pies, you must select Resize from the pop-up menu; it is not selected automatically. When you resize an object, the object changes shape uniformly, without changing its shape.
NOTE: Ovals, rounded rectangles, charts, and bitmaps do not have the Resize option in the pop-up menu, but do have resize handles, allowing you to resize these objects.
To resize an object, simply select the object and click and drag one of its handles.