PCB-Tools

PCB-Tools are a set of command-line tools for rendering and printing Gerber files. There are 3 separate applications: GerberRender, PCB-Render, and PCB-Print. GerberRender.exe is called directly from FreePCB when you select the option to generate .PNG files in the CAM dialog, so it should be placed in the freepcb\bin folder if you want to use this feature.