Right Click NOT is a module that disables printing and copying
page contents by disabling right-click functions. These functions
include Image Right Click, Image Dragging, Copy/Paste, Print, Page
Source View, Save, Select, and Developer Console.
We should be aware that experienced individuals may still find ways
to bypass these functions.
Read more https://extensions.joomla.org/browse/new/extension/access-a-security/rightclick-not