Here, you can customize the page size-by entering numbers in the Width and Height text boxes-and tweak other paper-related settings. The Page Setup dialog box opens to the Paper tab ( Figure 4-2). But what if you’re not using one of the standard paper sizes on the Size menu? In that case, click More Paper Sizes (at the bottom of the Size menu). The Page Layout → Page Setup → Size menu, shown in Figure 4-1, lets you choose a standard paper size with one click. Menu options usually focus on one or two settings, while dialog boxes are much more complex affairs, letting you change several settings at once. In general, the ribbon’s drop-down menus give you access to quick, predesigned solutions, while dialog boxes give you greater control over more details.
Word gives you two ways to set options: through ribbon menus and dialog boxes.