javascript - how can we find that an iPad has pdf viewer installed? -

javascript - how can we find that an iPad has pdf viewer installed? -

i want find ipad has built in pdf viewer or adobe acrobat installed or not?

is possible in javascript code? using dojo, jquery etc...

please help

thanks mathi s

to able see whether or not has app installed (for illustration pdf viewer), privacy issue , i'm pretty sure it's impossible check whether or not has pdf viewer installed.

javascript dojo