You may have seen some beautiful page borders, especially in some posters or notices, and wondered how people make them. Other than inserting regular line borders into your word file, you can replace them with art designs. Please see below for details:
Step 1: Click the "Design" tab from the ribbon;
Step 2: Click "Page Borders" in the "Page Background" area;
Step 3: In the "Borders and Shading" window, instead of selecting the border style, you will need to select one of art designs in the "Art" box;
Step 4: Click "OK" to finish.
Please note that the colour box will grey out, but you can change the "Width" to adjust the border size.
In case you only need to add the art borders to one of the pages, please refer to how to add borders to a certain page.