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 ...

Adobe Acrobat's toolset includes the ability to combine PDFs, bitmapped images and other document resources into files that contain pages of mixed sizes and orientations. If you need to convert PDF ...

Step-by-step instructions for creating PDFs from any file type, including methods for merging, compressing and password-protecting PDF documents securely.