Not all documents fit within Word's standard one-inch margin between text and the edge of the page. To change the margins in your Word documents, use one of several options, from predefined margins that make it easy to apply a different margin size to custom margins that are adjustable to your needs.
Adjusting Page Margins in Microsoft Word
To make the margins in your document smaller or larger, use Word's narrow, medium, or wide margins. To print your document on both sides of the paper and place it in a ring binder, use the Mirror Margin setting.
Mirror margins cannot be set in Word Online. However, if you view a document with mirror margins in Word Online, the mirror margins are preserved.
To apply a predefined margin, select Layout > Margins and choose the predefined margin you want to use.
