Website With embedded map that can be turned into a PDF

Good day, I am currently working on a website that will allow users to navigate a map to the location of their choice, style it with a preferred map layer and then convert the map to a pdf. I was able to research basic HTML and JavaScript code that embeds a custom-made map using Leaflet's API. I need to figure how to display a list of different layers as a sidebar of some sort outside of the map. The user will be able to choose from the list of layers to display on the map. I also need to provide the functionality to convert the map into a pdf when the user is happy with what the map looks like. I will attach pictures that show an example of what I'm trying to do.