Whoever transacts another's business in his name and yet against his
will is obliged to give up to him, or to his attorney, all the profits
that may arise therefrom, and to repair all the loss which is thereby
occasioned to either the one or the other.
Now the counterfeiter is he who transacts another's business (the
author's) against the other's will. Therefore the counterfeiter is
obliged to give up to the author or to his attorney (or the editor)
[any profits from the transaction].