1)Make the appropriate document window or book window active. If a book window is active, select the documents you want to affect.
2)Choose Format > Page Layout > Page Size.
3)Do one of the following:
•Choose a standard size from the Page Size pop-up menu. The correct dimensions appear in the Width and Height text boxes.
•Enter dimensions in the Width and Height text boxes. Custom appears in the pop-up menu. The custom page size you specify can be small, depending on the document’s margin settings, or as large as 216 inches by 216 inches (approximately 548 centimeters by 548 centimeters).
note: If the document contains custom master pages, FrameMaker prevents change to a page size that cannot accommodate the text frames on those master pages.