Here’s a quick 3-step method for outlining text in GIMP 2.
GIMP is the most popular photo manipulation and image editing package for Linux.
Many tutorials go through a long-winded process of converting the text to paths and expanding selections, but in the end, if you want quick results, this is the method to use.
Step 1: Write some text using the text tool
Click on the text tool in the toolbox, and write some text to outline.
Step 2: Select the Text by Colour
Click and hold down on the ‘Fuzzy Select Tool’ (more commonly known as the ‘Magic Wand’ tool) and change it from ‘Fuzzy Select’ to ‘Select By Colour’.
Click inside the text border (i.e. on the text itself) and all of the text will be selected, ready for outlining.
Next, select the color for the outline by changing the Foreground Colour in the toolbox.
Step 3: Add a Stroke to the Selection
With the text now selected and your foreground color set to the border color you wish to use, click on the Edit menu and then Stroke Selection
Adjust the Line Width to the width of the outline you want and hit Stroke
Your text is now outlined!