Click the Draw button on the Drawing toolbar and click Rotate or Flip .
Click Flip Horizontal or Flip Vertical .
PowerPoint flips the object.
Another way to modify your slide illustrations is to change their position by flipping or rotating. Flipping an object simply turns it over, making it a mirror-image of the original. You can flip objects horizontally or vertically. Rotating , on the other hand, moves an object on an invisible axis, changing the direction of the object in a clockwise or counterclockwise fashion.
Use caution when flipping an image that includes text. Flipping will cause the text to read backward, as if held to a mirror.
To rotate a selected object, click the Draw button on the Drawing toolbar and click Rotate or Flip .
Click Free Rotate .
Rotation handles surround the object. Click and drag a handle to rotate the object.
Release the mouse button; the object is rotated .
Rotating by Degrees
You can use the Rotate Left or Rotate Right options on the Draw menu to rotate an object in 90-degree increments . Activating the command twice rotates the object 180 degrees.
If you press and hold the Shift key while dragging an object's rotation handle, PowerPoint restricts the rotation to 15-degree increments.