title: Stop User from using "Print Scrn" / "Printscreen" key of the Keyboard for any Web Page
body: <p>I am currently doing a project, in which I need to stop the user from taking the snapshot of any Web Page, for which he can use the "Print Scrn" / "Printscreen" key available in any of the normal keyboards.</p>
  
  <p>I have been trying to find its solution, but in vain. If possible, I need to take into account of the "<strong>Screengrab</strong>" add-on of the Firefox browser, by stopping it also.  </p>
  
  <p>Any help is greatly appreciated, and I am using PHP (as server-side language) &amp; jQuery for my project.</p>