The article below document how to build a view based on a custom background map and custom shapes on Tableau Desktop.
Additionally, I include the online help article about how to use background images in your views.
Hope this helps
I want to save these articles on my end as PDF. Do you have option to do so or will I need to save the page as HTML file and then use a HTML converter to PDF such as this one https://www.coolutils.com/TotalHTMLConverter