A Van Gogh picture is a perfect example. You can now scan it and creatively redraw it, change some details, mirror it, blend it with another picture, change the colours, defocus it (I did a search for the famous block portrait of the Mona Lisa, but I failed) and then you sell it on a T-shirt, in a book, or whatever.

Except that he is too long dead by now, should he have to tolerate it if he was alife?

Wolfgang