Two Methods: Add a Border to a Word Document Using the Page Borders Feature Add a Border to a Word Document Using Clip Art. A page border can serve as a graphic enhancement for a variety of documents, such as letters, flyers, notices and signs.lick the Format tab in the Picture Tools menu. Click the Wrap Text button, located in the Arrange menu on the formatting tool bar, and select the Behind Text option from the pull-down menu. Right click on the border image, and choose Size and Position from the pull down menu. The Layout dialogue box will open.