2. After inserting the section break, double-click the page of landscape paper.
3. Then click the link to the previous section in the toolbar to cancel the link.
4. After unlinking, click Insert WordArt.
5. After clicking Insert WordArt, select Vertical Text Direction.
6. Then enter the page, drag the WordArt to the right, and then resize it.
7. The footer should also be unlinked from the previous section.
8. Then enter the page in the footer and select the current location.
9. You can insert the page number in the footer, and the vertical footer header will be ready.