The Image menu

Menu item: Action:
Rotate Clockwise Rotates the image 90° clockwise.
Rotate Upside Down Rotates the image upside down (180°). 
Rotate Counter-clockwise Rotates the image 90° counter-clockwise.
Flip Horizontal Flips the image horizontally.
Flip Vertical Flips the image vertically.  
Invert Image  Inverts the image. Increases the recognition quality of inverted images (white characters against black background).