The Image Editor will appear:2) Choose the Rotate tool from the top toolbar.
You can choose from many options:3) Click "Do It".
a) Flip Horizontal:
b) Flip Vertical:
c) Rotate 180°:
d) Rotate 90°CW (clockwise):
e) Rotate 90° CCW (counter clockwise):
f) or Rotate the image at an arbitrary angle of your choice: