Step 2:Select the text layer. You can find the layers from the Layers panel. If you do not see the Layers panel, you can display it by pressing F7 on your keyboard.
Step 3:Click on the Text tool button in the Photoshop toolbox.
Step 4:Click in the middle of the lesson to which you want to add the underline.
Step 5:Press Ctrl + A (or Command + A on Mac) to select the entire text layer.
Step 6:Click on the underline button in the Character window. If you do not see the character window, you can display it by clicking on the window at the top of the screen, then clicking on the Character Options.
The steps below will show youhow to underline text in Photoshop when that text is contained within the text layer. Whenever you add text to an image within the program, Photoshop automatically creates new text layers, so as long as your Photoshop file contains such a layer, you’ll be able to get the result of underlined text.