This app does what it says however, you have to have really tiny fingers because any little tap u make is a mark and you have to start the entire page over. I opened it on my iPad , I had to end up using a stylus to fill in my forms . I think this app needs an eraser option so if you make a mistake you dont have to fill the entire document in again. Im yet to use it on my iPhone 6 plus . Hoping its ok .
Kymika Quatrone about PDF Tools Professional - View, Read, Open, Edit, Export, Annotate, Sign and Fill Form Documents and Contracts