Rotating only one page in a document

If you have Adobe Acrobat (not the free Adobe Reader), you can use the page rotation tool. There are different ways to bring this up, the method that I use most often is to display the page thumbnails pane on the left side of the Acrobat window, and then right-click on the page you want to rotate, and then select "Rotate Pages". On the dialog that pops up, you can select how to rotate and what pages - the default will be the selected pages in the thumbnail view.