PDF or "Portable Document Format" is a file type that will display the same on any computer that can open it. PDF reading software is present on the vast majority of computers and even on many mobile devices. Michael "Doctor File Finder" Callahan explains.

PDF, (Portable Document Format) files are found all over the Internet. They are used by individuals and businesses alike. The PDF format was created by Adobe, but do you have to have Adobe Acrobat Reader on your computer in order to view PDF files? The short answer is no. Michael "Doctor File Finder" Callahan explains.

Andy and Sean explain Adobe's handy Portable Document Format.