[Wombat]

I am trying to insert a full page width's logo, however I have to reduce the
margins to 0 to allow the graphic to go to the edge of the page. This even
happens in the header section.
I have tried to zero the margins and then reset them after the logo is in
place but they still move the logo.
Is there any way to allow the logo to go full width without formatting the
picture and then moving it or resizing the image.
Is there a mysterious box I can tick?
I appreciate the printer may well miss the edges but I can live with that.

Any help would be appreciated.