PDF is basically the abbreviation of portable document format. It is basically a standard used in the process of exchange of documents. This file type was the creation of Adobe and they did this in 1993. This is actually a two dimensional view of document. You can add text and images that are two dimensional to this file. You can even show vector graphics using PDF files. Today time has changed and you can now attach 3D documents using its latest version of Acrobat 3D. This PDF file format was first known as Camelot. It was July 2008 when this PDF file format was officially given the status of standard file by International Organization for Standards. Adobe has always been facing heavy competition but still it is on top in IT field. The major competitors of adobe were envoy and CGDP. In 1995 AT&T tried to give a better option by lunching their DjVu. This is also commonly found in today's market but its status is only limited to libraries and EBooks. The adobe got famous after lunching its free of cost program availability. At the same time Adobe made the policy of supporting PDF file format and which latter turned as a global standard. Even if you open the website of Adobe, it is clearly written that the adobe reader is the official standard when talking about printing, and making a view of PDF file. Today you can even add multimedia contents to your PDF file along with the simple official forums. Opening a PDF file today is not a problem today. The only thing you need is internet availability. Now just go to Google and write how to open PDF file in the search corner. Now Google will do it job. It will automatically take you to the link which gives you the download option for the Adobe reader. Download this software and open every PDF file that you want. Always remember to download at least 5.0 version of adobe reader as below this version you will face a lot of problems in opening PDF files. Software with the name of very PDF PDF editor is another option when you are viewing these PDF files. It is also easy in use and reduces complications. It also gives editing facility but not as properly as adobe reader do. Many times it creates some marks on the PDF file. This mark is mostly like water stain in look. how to open pdf files.