How this works
Text is drawn directly onto the image's pixels at the position, size and colour you choose, with an optional drop shadow for readability against busy backgrounds — once exported, the text becomes part of the image itself, not an editable layer.
Common questions
Can I edit the text after adding it?
Not once you've exported — the text is baked into the image pixels, same as any image editor's flatten step. If you need to change it later, start over from the original image.