回复：“但IPAD上没有那样多的下载地方可去”，顺便下载PDF啊，

he either doesn't know how to use it or didn't try to use it at all -_-!

There are so many places to download books...and i have never used itune to get music/movie...just use wifi in external harddrive at home...or use dropbox/google drive(has ios app)/microsoft one/bunch of chinese cloud drive...so many choices...