You can easily rotate your images using the RadImageEditor control. Rotations by         90 degrees are supported. The pictures can be rotated using the RadImageEditor's         rotate commands, or programmatically on the client, by invoking the rotateImage(rotation)         method. 	
         The built-in commands can be rendered on the ToolBar by creating ImageEditorTool         objects with Rotate, RotateLeft or RotateRight         used as a CommandName. The Rotate command opens a dialog from which the image can         be modified, and the other two commands rotate the image by 90 degrees to the left         or right respectively.     
	         The rotateImage client-side method accepts a parameter of type         Telerik.Web.UI.ImageEditor.Rotation enumeration. The enumeration         has 4 (four) values:     
	
		- 
			Rotation.None - the image is not rotated. If the image is currently             rotated it restores the original image.
- 
			Rotation.Rotate90 - the image is rotated clockwise (to the right)             by 90 degrees.
- 
			Rotation.Rotate180 - the image is rotated clockwise by the 180             degrees.
- 
			Rotation.Rotate270 - the image is rotated clockwise by 270 degrees.