Print Setup allows you to change the default print settings.
To change page settings for a document:
Click the Paper Size tab and then click the paper size from the list.
Click the Paper Source tab and then click the paper source from the list.
Select the page Orientation by clicking the Portrait or Landscape button.
Enter your Margin boundaries in inches for the Left, Right, Top or Bottom of the page.
If you need to change the default setting for selected printer, click the Printer button and change the Page Setup and or the Advanced settings.

Size—To select the paper size for a document, choose the paper size from the size menu.
Source—To select the paper source, choose the paper source from the source table.
Portrait—Positions the scene in a vertical position, and displays an image at the top of the dialog.
Landscape—Positions the scene in a horizontal position, and displays an image at the top of the dialog.
Left—Specifies the distance from the left edge of the page to the left edge of the scene.
Right—Specifies the distance from the right edge of the page to the right edge of the scene.
Top—Specifies the distance from the top edge of the page to the top edge of the scene.
Bottom—Specifies the distance from the bottom edge of the page to the bottom edge of the scene.