How to make download popup with countdown ?

I have a site where people download pdfs, and on every article I have one download button that downloads directly the file without any redirect..

I would like to add a popup like the images below that let's you download the file after the countdown. Is there any plugin to do this?

The best option is to utilize the Jquery + ajax plugin. It will answer your questions. I can provide you with a few reference links for your consideration!!

https://www.jqueryscript.net/tags.php?/countdown/
https://www.codingsnow.com/2021/03/tutorial52.html