If your PDF document isn't in the correct orientation for easy reading, trying to rotate it and keep it the right way up can be a frustrating process. With free PDF programs such as Adobe Acrobat ...

Portable document format (PDF) files remain a popular choice for business documents ranging from contracts and forms to manuals and reports, so there's a good chance you need to open them often.

Developed 30 years ago by Adobe, the Portable Document Format, or PDF, is widely used around the globe for viewing and signing documents – everything from corporate annual reports and scientific ...