I have been trying to discover how I can restrict access to some books I created for a set of people but haven't found a convincing way. I created a summary of a course for my department and I hope to sell it upon completion but my fear is one person might buy and start distributing to others without my knowledge. I thought about document encryption with Microsoft Word 2016. I was able to password those documents but will still need to release the password to buyers and they can then in turn resell at a cheaper rate or just give it out. Please I really need an idea of how to protect this document so that even if someone sends to you, you would still have to come purchase from the original owner.

idrisreal002:
I have been trying to discover how I can restrict access to some books I created for a set of people but haven't found a convincing way. I created a summary of a course for my department and I hope to sell it upon completion but my fear is one person might buy and start distributing to others without my knowledge. I thought about document encryption with Microsoft Word 2016. I was able to password those documents but will still need to release the password to buyers and they can then in turn resell at a cheaper rate or just give it out. Please I really need an idea of how to protect this document so that even if someone sends to you, you would still have to come purchase from the original owner.

I have encountered the same problem in time past and i have searched online for solution without luck. So, I'm here to learn also.

If there is also a website that allows people publish their work while others come and purchase it from their site and the owner still gets his maximum profits. I would also like to know