PDF Reader for android

I am building an educational application and i want to view pdf files inside the app , the application works on android , now i had converted all pdf files to Jpg and displayed it inside the app but it takes a lot of space , is there any way to display pdf files directly ?

You can open a file with

but if you want to show it on the game window then it is a bit more trickier. Nevertheless here is some good discussion about it: http://forum.unity3d.com/threads/71964-PDF-reader

Thanks for reply but i want to view PDF inside the game ,I saw this tread bu i can’t find nothing interested except the PDF Render asset but it is so expensive = 97$
If you have any code that you could share with me it will be very helpful.

Did you find de way to open PDF file inside de unity app?