Different parts of a long document sometimes require different layouts. For example, although most of the document’s text is in portrait orientation, one or two pages might contain tables, figures, or other special elements that need to be set up in landscape orientation because of their width. By dividing the document into sections, you can set up each section with its own orientation.
Select the part of the document whose page orientation you want to change.
On the Page Layout tab, click the Margins button, and choose Custom Margins from the gallery to display the Page Setup dialog box.
Use the Zoom Control on the status bar to see your pages in detail, and verify that the layout is what you want.