What is a PDF file and how to open a PDF file
Short for: Portable Document Format

A PDF FILE IS A PORTABLE DOCUMENT FORMAT CREATED BY ADOBE SYSTEMS IN 1993.THIS TECHNOLOGY STORES MUCH BIGGER FILES THAT ARE NOT PRACTICAL TO BE AVAILABLE IN THIER OWN FILE FORMAT(BOOKS,PAMPHLETS,USER MANUALS,ETC.)THE ADOBE READERS THAT ARE AVAILABLE FREE OF CHARGE AT THIER WEBSITE IS THE SOFTWARE THAT CAN DOWNLOAD AND OPEN UP THESE LARGE FILES TO BE READ OR VIEWED BY THE PC USER.

you can use Adobe Acrobat reader (free) or Adobe Acrobat (paid license) to open it.

I prefer use Foxit.Reader.Pro to open it.

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