Copyright Protection & Digital Distribution
I understand that copyright laws protect all forms of my curricula and books. But how can copyrights really protect digital materials, eBooks, PDF files, etc?
From what I hear, most BIG publishers effectively protect their copyrights for digital materials by "licensing" it to the users and watermark it accordingly. Are there similar services available to independent writers and small publishers?
For instance, if I allow teachers to download my books from the Internet, can't they just send copies of them to others even though doing so is copyright infringement? Is licensing such material the only alternative to protecting books that are distributed digitally?