1. Left-click the photo you wish to rotate and choose the second icon (it looks like two arrows in a box) from the toolbar on the right of the editor.
2. On the drop-down list next to 'Angle' click '90 degrees' or 'Rotate Clockwise' or 'Rotate Counter Clockwise' as required.
To rotate a photo freely with its frame:
1. Left-click the photo you wish to rotate and choose the fourth icon from the left (it looks like a ruler) from the toolbar on the top right of the editor.
2. Under the word 'Orientation' and next to the word 'Angle', drag the point on the circle either clockwise or counter clockwise.
3. As you drag the mouse cursor around, you will see the photo being rotated and there will also be a numeric value displayed to show you the rotate angle.
4. Release the mouse button to apply the rotation.
Or alternatively you can simply left-click on the green circle towards the top left of your photo and drag it around clockwise or counter clockwise until you have found the position you desire.