What are the ways to prevent users to take screenshot of a webpage? [duplicate]
Screenshots are not controlled by the web browser, they are controlled by software running on the user's operating system and cannot be remotely controlled by a web server.
It is possible. Try this css feature.
html { display: none; /* hide whole page - the only true way to prevent screenshots */}
You cannot block the print screen button or the snipping tool in Windows 7 or the Grab application included with Mac OS or...