One customer came to me with a very interesting need. **He has a published book**, and the **digital "source"** of it, and he wants a software/platform that basically could enable him to **publish** that e-book online and let him make **changes and revisions** over time.

As this could be or not a specific requirement, I'm thinking if there couldn't be anything out there that could satisfy at least most of his needs.

**Here is the detailed requirements:**

* It needs to be an online platform
* It has to let him upload his book at the current state
* It has to let him make changes on the e-book online (like making corrections, adding new content etc.)
* It should have the option for him to either block copy paste of the e-book text from the users or just let them copy a reduced portion of it (like N words or so). *Printscreen is not a concern*.
* **And I think this is tricky:** It shouldn't publish the book publicly... It should, in some way, let only authorized users access it.

**Notes**

* No need for e-book download (for now). The users should only view it online.
* It could be either an online service or a self-hosted app
* It should be interesting if the software could display customizable watermarks along with the pages, to disencourage users to printscreen them (that's from me, he hadn't mentioned it).