Converting bitmaps to shapes
You can convert a bitmap to a shape by converting the bitmap into a rectangular shape with a bitmap fill. Once you have done this you can change the shape just like any other.
 To convert a bitmap 
 to a shape
 To convert a bitmap 
 to a shape
1. Select the bitmap (see Selecting objects).
2. From the Arrange menu, choose Convert to Editable Shapes.
Tip
 To convert a bitmap quickly, right-click 
 on the blend to open the pop-up menu and choose Convert 
 To Editable Shapes.
 To convert a bitmap quickly, right-click 
 on the blend to open the pop-up menu and choose Convert 
 To Editable Shapes.