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 ...

When receiving and reviewing work documents, downloading articles, or arranging a portfolio, you may find yourself accessing many PDF files. The default PDF viewer on Mac computers is Preview – but ...

Mozilla's latest version of Firefox conveniently includes a built-in PDF viewer. If you prefer your own PDF viewer, here's how to change it. Ed Rhee, a freelance writer based in the San Francisco Bay ...

Unlike other browsers, Firefox only uses internal settings to select a PDF viewer. Open the "Firefox" menu, click "Options" and open "Applications." Scroll down to "Portable Document Format (PDF)." ...

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.