Using the free image-editing application GIMP you can create custom text and outline it with a border in the color of your choice. The key is to use GIMP's layer tools.

Learn how to easily add. move, edit and manipulate text to the canvas in GIMP on Windows 11/10 PC. GIMP is an open source graphic editor.

How to Add Effects to Text in GIMP. When creating visual elements for your website, such as banners and logos, or working on printed media such as brochures, you can apply various effects to text ...