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.

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 ...

1] Use the Sharpen tool GIMP provides several picture editing, drawing, and editing tools to customize the color profile of an image, rotate it, flip it, crop it, and do more editing.

How to Use GIMP to Make Rainbows. Free and feature-rich, the open-source image editing program GIMP can be employed to create a wide variety of graphics and logos, making it a useful tool for ...