MapRender 
This mod allows you to generate the full map at high resolution as a png via using the settings menu (just below save).
The button to use this feature is right under save game. Settings are also available that allow customization.
Installation Instructions
- Download
source.zip - Unzip
MapRenderer-1.3.0to RimWorld mods folder - Optionally rename to
MapRenderer - Activate mod in RimWorld