on Task Bar, and click 
on the pop-up sub-task bar. Then some function buttons appear on Operation Panel.Rotate
When you scan a photo, sometimes you may scan it askew. So you need to rotate the image a little bit to get a correct picture.
In PhotoEdit interface, move your mouse cursor onto the First button on Task Bar, and click on the pop-up sub-task bar. Then some function buttons appear on Operation Panel.
Move your mouse cursor onto the small preview window on the upper part of Operation Panel, it will change to 
. You can press the left key of your mouse and drag to rotate the image.
Also you can type a angle degree into the textbox below the image, then click 
to rotate the image anti-clockwise according to the degree you have input, or click 
to rotate the image clockwise.
If you simply want to flip the image horizontally, click 
. Click 
to flip the image vertically.
If you are satisfied with the image after rotation, click 
on the Toolbar to save the changes; otherwise click 
to reload the original version of the image.