How to Center a Page, Top to Bottom in Word 2013
Type and format your document’s title.
It can be on a single line or on several lines.
To center the title, select it and press Ctrl+E, the Center keyboard shortcut. Apply any additional font or paragraph formatting as necessary.
Avoid the temptation to press the Enter key to add space above or below the title. Such space isn’t needed, and would wreck Word’s automatic centering powers.