How to Bold Text in GIMP

GIMP does not have a bold button the way Word or Google Docs does. Instead, bold is a separate font weight that you select from the font list. Once you know how it works, applying bold text takes about five seconds - But the first time, it trips almost everyone up.

How Bold Works in GIMP

Every font family (like Arial or Roboto) can have multiple weights: Regular, Bold, Light, Black, etc. In most word processors, you click a bold button and the software automatically switches to the Bold weight. GIMP does not have that automatic switch.

Instead, GIMP shows font names in the format Family + Style. So bold Arial appears as "Arial Bold" in the font list, not just "Arial." You select it directly by name.

How to Apply Bold Text

1. Press T to activate the Text tool.
2. In Tool Options, click the font name field. It will open a font browser or text input.
3. Type the name of your font followed by "Bold" - for example, type Arial Bold or Roboto Bold.
4. Select the matching font from the dropdown and click on the canvas to start typing.

If you already have a text layer and want to make it bold:

1. Click the text layer in the Layers panel.
2. Press T and click the text on the canvas to enter edit mode.
3. Select all with Ctrl+A.
4. In the font field in Tool Options, replace the current font with the Bold version (e.g., change "Roboto" to "Roboto Bold").

The text updates immediately. If the font name is not exact, GIMP will not find it. Font names are case-sensitive in some versions of GIMP, so match the name exactly as shown in the font browser.

What If There Is No Bold Option?

Not all fonts have a bold variant. Decorative and display fonts often only come in one weight. If your font does not have a "Bold" version, typing "FontName Bold" will not find anything - GIMP will just show no results or fall back to a default.

A quick way to check: In the font browser (Windows > Dockable Dialogs > Fonts), scroll through the fonts listed under your font family. If you only see "Regular" or just the base name, no bold variant is installed. You can find and install additional font weights - Most Google Fonts (fonts.google.com) come with multiple weights including Bold.

Simulating Bold Without a Bold Variant

If you need a heavier look but no bold font is available, you can fake it by adding a stroke:

1. Rasterize the text layer: right-click in the Layers panel and choose Rasterize.
2. Ctrl+click the layer thumbnail to load it as a selection.
3. Go to Edit > Stroke Selection. Set a 1-2px stroke in the same color as your text.
4. Apply and deselect (Ctrl+Shift+A).

This thickens the letter strokes slightly, similar to a bold effect. It is not as clean as a true bold font, but it works for small text or situations where you are stuck with a specific decorative font.