I’m new to programming in php and I have got a problem with the pop-up window of my website.

There is a button that opens a pop-up window, and in the process, it generates a pdf-file in the new opened window. The problem that I have is, that the pop-up window does not stay on the other screen. I’m working with a dual monitor setup and the pop-up always appears on the screen, where the main browser is opened on.

If the main browser tab is opened on the left screen, I want the pop-up to always show on the right side on the position, where I dragged it to and vice versa. I just can’t get it to work propperly and I have high hopes, that someone here could help me out with this problem.

Thanks in advance and have a great day!

I tried to add values to the window screen width and the screen top.
I asked ChatGPT about the problem but could not get a working answer, even with providing my code.