Due to some people asking about pdf apps." j, M5 p& \8 b0 A
I use android apps " repligo reader "which has the highlight feature on playbook,but playbook has bugs " t; d A' n! W% B( Q0 C... + s$ n% K+ W8 ?- q) c6 y' z7 m- ~. Palso I use goodreader for ipad...