PDFResizer is a free online tool to rotate your PDF documents online. Apart from rotating PDF pages, it offers a lot of features to process PDF files including Crop PDF, Merge PDF, Split PDF, Delete ...

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. Adobe Reader lets you rotate the view so you can easily read this ...

Here’s a quick but very useful Preview tip. Have you ever downloaded a PDF brochure that has a mix of portrait and landscape pages? You can use Tools -> Rotate Left (or Rotate Right) to flip the pages ...