I have tried to look online for an answer but I don't seem to be able to find what I am looking for. Here is my questions:
What is used to create maps like this:
and like this:
My goal is to augment already existing map with a few extra elements. I checked out Edraw Max but it does not seem to be able to upload a customized background.
So basically it would be great if the software accepted a .pdf file like above (I think it is already in a vector form) and after minor change and editing, I would be able to generate a similar .pdf file
Any suggestions would be greatly appreciated.