You can choose a size for the document window to use as a guide when you’re designing your page layout. For example, you may want to set the size of your page layout to 580 pixels or less to accommodate viewers with 14-inch monitors. (The size you choose does not affect the size of the browser window that displays the page.) If sizes don’t appear at the bottom of the document window, right-click the menu bar and select Show > Page Dimensions.