You can add a border to a document using the Borders and Shading tools. You can specify a border type, such as a box or shadow effect, and choose from a variety of line styles, such as solid, dots, or dashes. In addition, you can specify a color and thickness for the border.
Click the Design tab.
Click the Page Borders button.
Choose a border type.
Click a style.
Tip
Custom Borders You can also create a custom page border that has only one or two sides. Using the edging buttons in the Preview area of the Borders and Shading dialog box, you can turn borders on or off for the top, bottom, right, and left edges of the document.
Click here and choose a color.
Click the Width drop-down arrow to choose a line thickness.
Click OK.
Word applies the border to your page.
Tip
More Options If you click the Options button in the Borders and Shading dialog box, you can open the Border and Shading Options dialog box and specify margin settings for your page border. By default, Word sets the page border at 1/2 points all around, but you can customize the setting to suit your own document.