PDF files are files with extension (file ending) “.pdf”
PDF stands for "Portable Document Format." A PDF file lets you create a file with almost any content and others view it exactly as you created it from almost any application, on any computer system: even if he has a Mac and you have a PC. The file can be printed exactly as you see it on a monitor.
Since a PDF file captures document text, fonts, images, and even formatting of documents from a variety of applications, you can e-mail a PDF document to your friend and it will look the same way on his screen as it looks on yours.
There many, many PDF file on the internet; some are on this website.
Example file: "reunion09announce.pdf" on this website was the mailed announcement for the 2009 reunion.
To view a PDF file, you need a PDF Reader, a free application program. PDF files are often called Adobe Reader files. To view a PDF file, you do need Adobe Reader or an alternative PDF reader.
All pdf files on a computer will appear with the icon shown here if Adobe Reader is the default "pdf" reader. Adobe Reader is almost always installed on new computers. All pdf files will appear with the icon shown here if Foxit Reader is the default "pdf" reader. I recommend Foxit PDF Reader.
More about choosing and downloading a PDF file reader.
More defined terms for computer & internet newcomer.
Updated and links checked on September 8, 2009