I have a big client at the moment who wants me to create an eBook/iBook that can only be viewed by the purchaser.
Basically they want the book to self destruct or turn into something unreadable if it is passed on without being payed for.
I've never seen this done before and have no idea if it's possible and if it is possible how to do it.
I have heard that it's possible to make an eBook self destruct after a period of time but again am not sure how this is done and this is not what we need to achieve. It's only if it's illegally passed on that we are concerned with.
Any thoughts, suggestions, ideas and possible offers of being able to do this would greatly be appreciated.