To make dotted lines or circles and shapes with dotted lines using GIMP, use the Paths tool to draw the line & then the Stroke path tool.

Use this tool, then, to create reflections if you so wish. How to mirror images using GIMP To learn how to mirror images with the free image editing tool known as GIMP, please follow the steps below: ...

How to Draw a Dotted Line in GIMP. If you think creatively, you can often use existing tools in useful new ways. The free GNU Image Manipulation Program has a Paths tool that assists with drawing ...