I would like to modify a couple fonts already available on iOS -- for instance, Helvetica Neue -- to use a different line height, and then include these modified fonts in my application bundle. Nevermind why -- let's just say I need to use them in a UITextView, so modifying the appearance with CSS is impossible.
Would Apple reject an app for bundling a modified version of one of these fonts? Would it violate copyright in some way, or perhaps an Apple guideline for developers?
This is not a programming question per se, so I hope no one is offended that I have asked it here -- I did not know of a better place in the StackExchange universe.