Many publishers, even authors, are happy to distribute their books in any and all formats, both print and electronic. this is called

Platform agnostic publishing. "Platform agnostic" is a term that means a product runs as well on any platform as it does on one in particular. In this example, the term refers to the format publishers (and even authors) use to distribute books. If they're happy to distribute a book in any and all formats, they're using platform agnostic publishing - - because the book functions as well as it does through all formats.