You can align text between the top and bottom margins of a page if the text does not fill the page. For example, centering text vertically often improves the appearance of short business letters or report cover pages.
By default, Word applies vertical alignment to your entire document, but you can limit the alignment to a particular section if you divide the document into sections. See the section “Insert a Section Break” For more information.
Click anywhere on the page you want to align vertically.
Click File.
Click Page Setup.
The Page Setup dialog box appears.
Click the Layout tab.
Click the Vertical alignment and select a vertical alignment choice.
Click OK.
Word saves your selection.