Try these best free software and online tools that let you rotate PDF pages by 90 degrees, 180 degrees, or 270 degrees.

Locate the Rotate View submenu and choose either "Clockwise" or "Counterclockwise" to rotate the page view in 90-degree increments. This reorients pages from portrait to landscape, or vice versa.

How to Rotate the Text on a PDF File. If a client emailed you a PDF with a combination of pages in portrait and landscape mode, some pages may display at a 90-degree angle.

Learn how to rotate just one page of a multi-page PDF in Preview.

It's not immediately obvious, but when viewing PDF documents in the Files app, there are hidden tools that enable you to rotate pages, add blank pages, insert images, delete pages, and even scan ...

Mac only: Got a PDF with some portrait pages and some landscape? With Mac OS X's built-in Preview app, you can rotate a single page within a multi-page document.