Text and Simple Graphics in GIMP: Titles, Shapes, Icons, and Exporting Assets

Capítulo 9

Estimated reading time: 9 minutes

+ Exercise

Working with the Text Tool (Titles and Labels)

Text in GIMP is created as a special kind of layer (a text layer). You can edit the wording, font, size, and spacing later as long as it remains a text layer. Once you convert text to a path (or rasterize it), you gain shape-editing options, but you lose easy “type-and-edit” behavior.

Create and edit text

  • Select the Text Tool (T) and click on the canvas to create a text box.
  • Type your title. If you need a fixed-width block (like a subtitle), click-and-drag to create a text box first, then type inside it.
  • In the Tool Options, set Font, Size, and Color.
  • To edit later, select the text layer in the Layers panel and use the Text Tool to click into the text again.

Font selection (beginner-friendly rules)

  • Use one font family for a clean beginner design; add variety with weight (Regular/Bold) rather than mixing many fonts.
  • For thumbnails and banners, prefer high x-height and clear shapes (many sans-serif fonts work well).
  • Keep readability: strong contrast between text and background (light on dark or dark on light).

Size, kerning, and line spacing basics

GIMP lets you adjust spacing so titles look intentional rather than “default.”

  • Font size: increase until it reads clearly at the final viewing size (thumbnails need larger text than you think).
  • Kerning (letter spacing): in Tool Options, adjust Letter Spacing slightly (often small positive values help uppercase titles breathe; too much looks disconnected).
  • Line spacing: for multi-line titles, adjust Line Spacing so lines feel grouped but not cramped.

Alignment and layout control

There are two common alignment tasks: aligning text inside its own box, and aligning the text layer relative to other elements.

  • Align text within its box: with the Text Tool active, use the alignment buttons (left/center/right/justify) in Tool Options.
  • Align the text layer on the canvas: use the Align Tool to align the text layer relative to the image or another layer (for example, center it horizontally, or align it to a shape accent).

Text as paths (when you need shape edits)

Convert text to a path when you need vector-like control (for example, to create an outline stroke that stays crisp, to warp letters with path operations, or to combine text with other shapes). Keep a copy of the original text layer so you can still edit the wording.

  1. Duplicate your text layer (so you keep an editable version).
  2. Right-click the duplicate text layer and choose Text to Path.
  3. Open the Paths panel to see the new path.
  4. To draw the path as an outline: create a new transparent layer above, then use Edit > Stroke Path (choose line width and style).
  5. To fill the text shape: with the path active, use Path to Selection, then fill the selection on a new layer.

Tip: If you want a non-destructive outline effect without converting to path, you can also use Layer Effects (if available in your setup) or manually duplicate and stroke via selection/path. The path method is predictable and export-friendly.

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Simple Graphics: Shapes, Badges, and Icon-Like Elements

In GIMP, clean shapes are typically made in two ways: (1) selections filled/stroked for fast rectangles and circles, and (2) paths for smooth curves and custom shapes. For asset work (icons, badges, accents), paths usually give the cleanest edges.

Method 1: Shapes using selections + fill/stroke

This is the fastest way to create rectangles, circles, and simple badges.

Rectangle accent (selection + fill)

  1. Create a new layer named Accent Shape above your photo layer.
  2. Use the Rectangle Select tool and drag out a rectangle where you want the accent.
  3. Choose a foreground color (for example, a bright brand color).
  4. Fill the selection (Bucket Fill or Edit > Fill with FG Color).
  5. Deselect when done.

Circle badge (selection + fill + stroke)

  1. Create a new layer named Badge.
  2. Use the Ellipse Select tool; hold a modifier key (depending on your system) to constrain to a perfect circle.
  3. Fill the selection with a solid color.
  4. To add an outline: go to Edit > Stroke Selection and choose a line width (e.g., 6–12 px for thumbnail-sized designs).

Edge quality note: If your shape edges look jagged, ensure the selection tool has anti-aliasing enabled, and avoid scaling the shape layer up and down repeatedly. Create shapes at (or near) final size.

Method 2: Clean curves using paths

Use paths for rounded accents, swooshes, pointers, and custom icon silhouettes.

Create a curved shape with the Paths tool

  1. Create a new layer named Curved Accent.
  2. Select the Paths Tool and click to place points; click-and-drag to create curve handles.
  3. Close the path by clicking the first point again (for a closed shape).
  4. Convert the path to a selection (Path to Selection).
  5. Fill the selection with your accent color.

Stroke a path for clean line icons

For simple “icon-like” line art (arrows, underlines, dividers), stroking a path is often cleaner than painting with a brush.

  1. Create a new transparent layer named Icon Line.
  2. Draw a path (straight or curved).
  3. Go to Edit > Stroke Path.
  4. Choose a line width and style. If available, use a round cap for smoother ends.

Consistent spacing and sizing (quick checklist)

  • Use a small set of sizes: e.g., title size, subtitle size, and one stroke width for all outlines.
  • Keep padding consistent: the distance from text to shape, and from elements to the edges, should repeat.
  • Align edges: align the left edge of title text with the left edge of a shape, or center both—avoid “almost aligned.”

Transparent Backgrounds and Exporting PNG Assets

Transparent backgrounds are essential for reusable assets like icons, badges, and overlays. The key idea: transparency is stored in the layer’s alpha channel, and formats like PNG preserve it.

Ensure transparency is available

  • If you’re working on a single layer without transparency, add it via Layer > Transparency > Add Alpha Channel.
  • To remove a background (for an asset), delete or mask it so you see the checkerboard pattern (transparency).

Export a single asset as PNG with transparency

  1. Hide any layers you don’t want in the export (for example, hide the photo and keep only the icon).
  2. Optionally crop to content: use Image > Crop to Content if you want a tight asset boundary.
  3. Go to File > Export As and choose .png.
  4. In PNG export options, keep defaults unless you have a specific need; transparency is preserved automatically.

Export multiple assets (practical workflow)

If you need several icons/badges from one file, keep each asset in its own layer group and export one at a time by toggling visibility. Name layers clearly (e.g., icon_play, badge_new, underline) so exporting is fast and consistent.

Preparing a Banner or Social Image: Safe Margins and Readability

Social platforms often crop or overlay UI elements. “Safe margins” are a simple design habit: keep important text and logos away from the edges so they survive cropping on different screens.

Create safe margin guides

  1. Decide your canvas size (example: 1280×720 for a thumbnail-like layout, or another size you need).
  2. Choose a safe margin value (example: 60 px on all sides for 1280×720; increase if your platform crops aggressively).
  3. Create guides at those offsets (left/right/top/bottom). Use guides so you can visually keep text inside the safe area.

Readability tricks for text over photos

  • Add a shape panel behind text (solid or slightly transparent rectangle).
  • Use a subtle shadow or outline (path stroke method) if the background is busy.
  • Prefer fewer words and larger type for small viewing sizes.

Project: Design a Clean Thumbnail (Photo + Title + Shape Accent)

Goal: build a simple, consistent layout using a photo layer, a bold title, a colored shape accent, and controlled spacing. You’ll practice text settings, alignment, and exporting.

Project setup (recommended layer stack)

  • BG Photo
  • Darken Overlay (optional)
  • Accent Shape
  • Title Text
  • Small Badge/Icon (optional)

Step-by-step

  1. Create the canvas: make a new image at your target size (e.g., 1280×720). Add safe margin guides (e.g., 60 px).
  2. Place the photo: add your photo as BG Photo. Position it so the subject leaves space for text (for example, subject on the right, text on the left).
  3. Improve text contrast (optional overlay): create a new layer Darken Overlay above the photo. Fill it with black and lower opacity until the photo is slightly darker where text will sit (or use a large soft gradient if you want the darkening only on one side).
  4. Create the accent shape: on Accent Shape, make a rectangle or rounded badge area behind the title using selection + fill. Keep it inside the safe margins. Use one strong color.
  5. Add the title: create Title Text with the Text Tool. Choose a readable font and a bold weight. Set size so it’s clearly readable at small scale. Adjust letter spacing slightly if needed.
  6. Align and space: align the left edge of the title with the left edge of the accent shape (or center both). Keep consistent padding (e.g., 24–40 px between text and shape edges). Ensure the title stays inside safe margins.
  7. Add a simple icon/badge (optional): create a small circle badge using Ellipse Select + fill + stroke, or a simple line icon by stroking a path. Keep stroke width consistent with the design style.
  8. Check at small size: zoom out until the thumbnail is small on screen. If the title is not instantly readable, increase size, simplify wording, or strengthen contrast.
  9. Export: export the full thumbnail as PNG (or JPEG if required by your platform, but PNG keeps edges crisp for graphics). If you created reusable elements (badge/icon), hide other layers and export them separately as transparent PNG assets.

Common fixes (fast troubleshooting)

ProblemFix
Text looks slightly “off” even when centeredTry optical alignment: nudge a few pixels, or align to the shape edge rather than the canvas center.
Title blends into the photoAdd a solid/transparent panel behind it, increase contrast, or add a path-based outline stroke.
Shapes look soft after resizingRecreate shapes at final size; prefer paths for curves; avoid repeated scaling.
Exported asset has a white backgroundEnsure transparency (alpha channel) and export as PNG; hide background layers before exporting.

Now answer the exercise about the content:

You want to export a reusable icon from GIMP with a transparent background. Which workflow best ensures the transparency is preserved in the exported file?

You are right! Congratulations, now go to the next page

You missed! Try again.

Transparency is stored in the layer’s alpha channel, and PNG preserves it. Hiding other layers ensures only the asset exports, and cropping to content can create a tight boundary.

Next chapter

A Repeatable GIMP Workflow: From Raw Image to Finished Export

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