I'm pretty sure that the law does not permit you to re-sell digital copies. As when you purchase a digital book (DRM or not), you don't own the digital copy -

I'm pretty sure that the law does not permit you to re-sell digital copies. As when you purchase a digital book (DRM or not), you don't own the digital copy - you're only granted a license to use it for your own use. This license does not extend to reselling it (what your suggestion would be doing). Physical books fall under a 'property purchase' model while ebooks fall under the 'license based' model. A good (albeit basic) read: https://goodereader.com/blog/e-book-news/this-is-the-big-reason-why-we-dont-own-ebooks https://goodereader.com/blog/e-book-news/this-is-the-big-rea...