Well I had time to print the front and back on the film, expose it in the UV, develop it and etch...... Still need to scour it both sides, tin it, drill it and solder it up yet.
It's just badly scanned and cropped rather than cut at an angle 
There is about a cm all round that.
When it's all working I will release all the details so anyone can control an ATX power supply from the DUE (including front and rear masks so people can make the board). It would be useful for a bench power supply or a larger power supply for a big project in addition to what I am doing.