问题
is it possible to limit number of copies (from code) which user is allowed to print?
回答1:
In a word: No.
This is not exposed in the public API and you should file a feature request on bugreport.apple.com if you want to see this functionality in a future version of the iOS APIs.
来源：https://stackoverflow.com/questions/6200486/ios-printing-ui-limit-number-of-copies