How to protect my ebook from getting shared

Make a personalized copy of the ebook for each of the buyers.

Put so much info about the buyers on it (their name, paypal email, IP etc as Headers, Footers, Watermark) so that they find it in their best interest not to share / leak it anywhere.

Also, it'll help you to easily identify / patch, if any whatsoever :)
EXACTLY!!! I've bought a few nutrition and exercise ebooks over the last few years and they've all had this level of info in it. Name, email and such. No way I'm sharing that and I have no desire to try and remove it.
 
Contact the sites, where you find that they offer your pdf for free, and send a complaint. I think most sites will remove the link.
 
if the user can see the text he can share it , whatever u do ,
watermark can be easy removed , even if u use some protect software user can easy do screenshot or even with his phone camera and make it a txt or just joint the screens in new pdf .
but make a personalized copy of the ebook for each of the buyers as other members said is good idea that make less sharing , and make some warnning msg ..,
good luck
 
It is a good question actually. What I do in this case would be Generate random 20-30 digit strings, we'll call them LICENSE KEYS. Then sell them. Anyone who purchases your ebook will get a unique license key in their email which they'll have to show / email / skype to you to get their personal copy.
yes, it'll take more time but its a good way to prevent leaks. All depends on your priorities :)


I didn't want it to come to this but here's the extreme solution:- :D
http://armjisoft.com/pdf-drm-ownerguard/ [Not affiliated]

This tool restricts ebook to a single HWID and hence no one else can use / open it!
Although this looks awesome.....it comes with a hefty price tag.
 
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