I'm looking for the easiest way to draw a custom layer and export it as a tile cache. Basically what I would like to be able to do is load a base layer, and then draw objects and annotations on top of it and export these objects and annotations as a raster (GeoTIFF) than I can them run through MapTiler. I'd like my custom map to include both polygons, circles, and text, sort of like using a georeferenced Adobe Illustrator. What's the best process to do this?
I'm thinking QGis since I have experience there, but maybe there are other tools where this is more straightforward