http://www.pcreview.co.uk/forums/insert-a3-page-in to-a4-document-t3732545.htmlin Word 2007 click Page Layout > Breaks > Next Page. This will create a new page from which you can change the size to A3 by clicking Page Layout > Size > A3
http://www.pcreview.co.uk/forums/insert-a3-page-in to-a4-document-t3732545.htmlin Word 2007 click Page Layout > Breaks > Next Page. This will create a new page from which you can change the size to A3 by clicking Page Layout > Size > A3