How to Add a Watermark to Documents in Word 2013
When finer papers are held up to the light, they show a watermark — an image embedded into the paper. Word 2013 lets you fake a watermark by inserting faint text or graphics behind every page in your document. Here's how to get that impressive look using Word 2013:
Click the Design tab.
In the Page Background group, click the Watermark button.
A menu plops down with a host of predefined watermarks that you can safely duck behind the text on your document's pages.
Choose a watermark from the long, long list.
The watermark is applied to every page in your document.
You can customize the watermark by choosing the Custom Watermark command from the Watermark menu. Use the Printed Watermark dialog box to create your own watermark text, or you can import a picture, such as your company logo.
To rid your document's pages of the watermark, choose the Remove Watermark command from the Watermark command button menu.
If the watermark doesn't show up in the printed document, you may need to enable the Print Background Colors and Images setting.