How to directly display a particular page when opening native PDF Reader in an iOS browser?

I have developed a web project. In my system with Windows 8.1 + chrome browser, I can directly view a page in a PDF document on opening a PDF Reader. I have added #page=73 in the url. It is working fine in all the Windows browsers. It is not working in the iOS browsers with native PDF Reader. It shows always the first page. What page parameter I need to add to navigate the page. Please help me. Thanks in advance.