Map printing can be more involved than simple printing of word processing documents or PowerPoint presentations.Map files can be very large in size and temporarily consume large amounts of diskspace while printing .
Layout is the arrangement of map elements of various types on a page for printing.one of the initial steps in building your layout is to set the desired page size using the Page and Print setupdialog box.
1. Click on the option File >Page and Print Setup on the main menu to open the Page and Print Setup dialog box.
2. You can set yours layout page size as shown below.
By default the page size of your layout for a blank map will be set to the printer's paper size.
3. To set your own page size you need to uncheck the Use Printing Paper Setting check box to set the page size of your layout.You can choose any page dimensions you want ,but the printer name will not be saved with the map document(.mxd).
4.Set the page size by typing the preferred page dimensions into the Width and Height boxes.
Alternatively ,you can select a standard page size from the Standard Sizes drop -down list,such as ANSI C,Architectural D,or ISO A2.
5.Once you change your layout's page size, you will need to resize and reposition all the map elements to fit the new page dimensions.