Adding a background to your Microsoft Word document adds interest and makes the document more attractive. Microsoft includes the option to add a background that appears behind the text in your document. Generally, backgrounds are used for documents viewed online, according to the Microsoft Office website, but you can use them in any type of document. Document backgrounds can include solid colour, patterns, colour gradient, textures and pictures.
Open the Word document in which you want to add a background.
Click the "Page Layout" tab, and click "Page Colour." Page Color is located in the Page Background group.
Choose a background colour from the drop-down list. If the list does not display the desired colour, click "More Colours" to choose a colour from the colour wheel. If you want to use multiple colours or a pattern, click "Fill Effects."