What is definition of pdf?

Portable Document Format (PDF) is universal standard file format that is created by Adobe Systems in 1993 and it is used for representing documents in a manner independent of application software, hardware, and operating systems. Each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, graphics, and other information needed to display it.

There are many PDF software available in the market checkout the list of some best PDF software's.

Adobe Acrobat X Pro

Classic PDF Editor

Nitro PDF

Fixit PDF