Use the Warp medium to stretch and distort regions
            of the image.
         
         To warp the image:
         
         
            - Click Custom and select Warp from the
               Custom Media box.
            
 
            - Click Canvas.
            
 
            - Set the brush size.
               
The area that can be
                  warped is determined by the brush size.
               
             
            - Select a portion of the image and hold
               down and drag the cursor to warp the selection.
                  
                     
                        
                        
                        
                           | 
                            | 
                           
                            | 
                        
                        
                           | Original image | 
                           After using the Warp medium |