Regarding the video portion 12:33 till video end, a person I know taught us another method, which is as follows: 1- Draw a box around the stamp. 2- Select the drawn box. 3- Press Alt + F3 twice. 4- On the top right corner, a tab (I do not know its real term) will appear, named "Lens". Under it, the default option will be "No Lens Effect". Change the option to "Invert". 5- Now print, but without ticking the "Prepress - Paper/Film Settings - Invert" tick-box.
