The Page Orientation determines whether the long edge of the paper is along the bottom/top or along the sides. There are two page orientation options to choose from: portrait or landscape. If you select Portrait (the default option), the long edge of the paper is along the sides; the short edges are along the top and bottom. If you select Landscape, the long edges are along the top and bottom; the short edges are along the sides.

You can easily change between Portrait and Landscape using the steps listed below:

1. On the File menu, click Page Setup.
2. Click the Margins tab,
3. Under Orientation, click Portrait or Landscape.
4. Click OK.

Word will automatically change the page orientation of your entire document.