Different inside margin within middle spread of booklet

[JennyWren]

Hi - I am doing a 4 side A4 booklet, using a folded A3 paper.



I want 0" margins on pages 2 and 3 at the inner sections as I want to print a circle - half of it over page 2 and half over page 3. How do I accomplish this.



I can't seem to alter the margins on the 2 middle pages only, all 4 page margins are being altered.



When I print out my document, I want the circle to be complete covering the 2 middle sides, no gaps between the two halves of the circle.




Anyone any ideas please?


Thanks