implementing scribble pad

Hi I have 2 related questions with respect to a prototype I am working on: 1. I am trying to implement a scribble pad that enables user to draw on a particular area of the UIScrollView. The remaining part of the UIScrollView can contain other UI elements such as Button, TextFields etc. - Facing issues as UIResponder Delegates like touchesbegan don't seem to work for UIScrollView. 2. Secondly, the application needs to create a multi-page PDF having the content of the UIScrollView. Based on the height of the UIScrollView, the PDF has to be multipage. Please suggest a sample app/library/framework that can enable me to implement this. Thanks