This is very kind of you!
Currently the best way to do this is to buy the book again. You can then select one of the copies of the book in your Leanpub library and "archive" it, so you don't see duplicates.
Thank you!
Sometimes readers want to pay for a book after they have got it for free, or pay more for it after reading it
Written by Leanpub Support
Updated over a week ago