Seems to work well although to choose your pages, you need to "exclude" page IDs. What if you have 100 pages and only want to protect a few? You'd have to find all the page IDs and type them in manually. Isn't there a way to "include" page IDs? Then it would be worth five stars. :-)
Note: To use the image protection, you must go into your post, select the image, then de-link it. If it's linked and opens up a larger image, one can copy / download it.