Changing Object's Shape
Scale Using the Bound Box
To resize an object, drag a corner or side handle on the object's bound box using the Move tool . To preserve the aspect ratio, do that holding down the Shift key.
Scale Objects to a Particular Size
If you know a new size of the object exactly, you can input it into the width and height fields of the Geometry panel.
Scale Objects by a Particular Percentage
In order to scale an object by certain percentage, set the W and H values in the Transform panel.
To shear an object, set the amount of transformation using one of the Shear controls. An icon near each tool shows the corresponding transformation pattern.
In some cases, an object can be aligned to the grid or some other object. To preserve the alignment, you can select a reference point using the 9-point control. The selected point will retain its position after transformation. For example, you can align the top left corner of a rectangle to the grid. Then click on the upper left dot of the 9-point control. After transformation, that corner will still be aligned to the grid.