Of course, there's nothing to stop a plagiarist from changing things around enough to beat any copyright action. Most likely they will be, but you can't tell. A web document is broken into pages. In addition, good design uses frames to ease navigation, plus graphics to enliven and illustrate the text. This can mean that a 150 page document might have 400 or 500 files to distribute, which can be a nightmare to coordinate.
Help is at hand.
Thus there is only one file to distribute, containing all the files for your HTML documents. You don't have to worry about losing one file, or cluttering up the user directory with several hundred HTML and graphics files. The Publisher program can create and modify these ebook files, as well as view the contents, but it cannot extract the contents to disk. It also encrypts the EBK file so that it cannot simply be loaded into a word processor. This makes it extremely difficult for someone to steal your content.