i need help and i am giving you an example here http://www.t20worldcup-2016.in/_images/download/icct20worldcup2016schedule-women.pdf this person upload an pdf file here, i new so i need help how to insert pdf file to my post in wordpress, or i have to install abode reader software to my site? 

The Mobile OS has different versions.A mobile OS is an operating system that is specifically designed to run on mobile devices such as mobile phones, smartphones, PDAs, tablet computers and other handheld devices.