Click the Underline icon (a 'T' with a line under it).
You now have a custom dashed or wavy underline that no default text editor can create.
Here is a breakdown of the feature and how to get the most out of it. underline in illustrator
The fastest way to underline text is through the . This method is dynamic, meaning the underline will move and resize automatically if you change the text.
The most useful aspect of this feature is hidden. The standard underline often looks generic—it cuts through the "tails" of letters like 'y' or 'g', and the weight of the line is tied to the font size. Click the Underline icon (a 'T' with a line under it)
This article covers three methods: the (quick but limited), the Custom Thick Underline (professional), and the Zigzag/Wavy Underline (creative).
: Go to Window > Type > Character or press Ctrl + T (Windows) or Cmd + T (Mac). The fastest way to underline text is through the
Hold while clicking and dragging to draw a perfectly horizontal line beneath your text.
If you are using a recent version of Adobe Illustrator (2023/2024+), there is a checkbox in the Underline Options menu called .
With the line selected, go to the (Window > Stroke).