GNU Image Manipulation Program

Table of Contents

Preface

1. GIMP User Manual Authors and Contributors

I. Getting Started

1. Introduction

1. Welcome to GIMP

1.1. Authors

1.2. The GIMP Help system

1.3. Features and Capabilities

2. What's New in GIMP 2.6?

2. Fire up the GIMP

1. Running GIMP

1.1. Known Platforms

1.2. Language

1.3. Command Line Arguments

2. Starting GIMP the first time

2.1. Finally . . .

3. First Steps with Wilber

1. Basic Concepts

2. Main Windows

2.1. The Main Toolbox

2.2. Image Window

2.3. Dialogs and Docking

3. Undoing

3.1. Things That Cannot be Undone

4. GIMPLite Quickies

4.1. Intention

4.2. Change the Size of an Image (Scale)

4.3. Make JPEGs Smaller

4.4. Crop An Image

4.5. Find Info About Your Image

4.6. Change the Mode

4.7. Flip An Image

4.8. Rotate An Image

5. How to Draw Straight Lines

5.1. Intention

5.2. Examples

4. Getting Unstuck

1. Getting Unstuck

1.1. Stuck!

1.2. Common Causes of GIMP Non-Responsiveness

II. How do I Become a GIMP Wizard?

5. Getting Images into GIMP

1. Image Types

2. Creating new Files

3. Opening Files

3.1. Open File

3.2. Open Location

3.3. Open Recent

3.4. File Browser

3.5. Drag and Drop

3.6. Copy and Paste

3.7. Image Browser

6. Getting Images out of GIMP

1. Files

1.1. Saving Images

1.2. Saving Files

2. Preparing your Images for the Web

2.1. Images with an Optimal Size/Quality Ratio

2.2. Reducing the File Size Even More

2.3. Saving Images with Transparency

7. Painting with GIMP

1. The Selection

1.1. Feathering

1.2. Making a Selection Partially Transparent

2. Creating and Using Selections

2.1. Moving a Selection

2.2. Adding or subtracting selections

3. QuickMask

3.1. Overview

3.2. Properties

4. Using the Quickmask

5. Paths

5.1. Path Creating

5.2. Paths and Selections

5.3. Transforming Paths

5.4. Stroking a Path

5.5. Paths and Text

5.6. Paths and SVG files

6. Brushes

7. Adding New Brushes

8. The GIH Dialog Box

9. Varying brush size

9.1. How to vary the height of a brush

9.2. Creating a brush quickly

10. Gradients

11. Patterns

12. Palettes

12.1. Colormap

13. Drawing Simple Objects

13.1. Drawing a Straight Line

13.2. Creating a Basic Shape

8. Combining Images

1. Introduction to Layers

1.1. Layer Properties

2. Layer Modes

3. Creating New Layers

4. Text and Fonts

5. Text

5.1. Embellishing Text

5.2. Adding Fonts

5.3. Font Problems

9. Enhancing Photographs

1. Working with Digital Camera Photos

1.1. Introduction

1.2. Improving Composition

1.3. Improving Colors

1.4. Adjusting Sharpness

1.5. Removing Unwanted Objects from an Image

1.6. Saving Your Results

10. Color Management with GIMP

1. Color Management in GIMP

1.1. Problems of a non Color Managed Workflow

1.2. Introduction to a Color Managed Workflow

11. Pimp my GIMP

1. Preferences Dialog

1.1. Introduction

1.2. Environment

1.3. Interface

1.4. Theme

1.5. Help System

1.6. Tool Options

1.7. Toolbox

1.8. Default Image Preferences

1.9. Default Image Grid

1.10. Image Windows

1.11. Image Window Appearance

1.12. Image Window Title and Statusbar

1.13. Display

1.14. Color Management

1.15. Input Devices

1.16. Input Controllers

1.17. Window Management

1.18. Folders

1.19. Data Folders

2. Grids and Guides

2.1. The Image Grid

2.2. Guides

3. Rendering a Grid

4. How to Set Your Tile Cache

5. Creating Shortcuts to Menu Functions

6. Customize Splash-Screen

12. Scripting

1. Plugins

1.1. Introduction

1.2. Using Plugins

1.3. Installing New Plugins

1.4. Writing Plugins

2. Using Script-Fu Scripts

2.1. Script-Fu?

2.2. Installing Script-Fus

2.3. Do's and Don'ts

2.4. Different Kinds Of Script-Fus

2.5. Standalone Scripts

2.6. Image-Dependent Scripts

3. A Script-Fu Tutorial

3.1. Getting Acquainted With Scheme

3.2. Variables And Functions

3.3. Lists, Lists And More Lists

3.4. Your First Script-Fu Script

3.5. Giving Our Script Some Guts

3.6. Extending The Text Box Script

3.7. Your script and its working

III. Function Reference

13. Toolbox

1. The Toolbox

1.1. Tool Options

2. Selection Tools

2.1. Common Features

2.2. Rectangle Selection

2.3. Ellipse Selection

2.4. Free Selection (Lasso)

2.5. Fuzzy selection (Magic wand)

2.6. Select By Color

2.7. Intelligent Scissors

2.8. Foreground Select

3. Brush Tools

3.1. Common Features

3.2. Painting Tools (Pencil, Paintbrush, Airbrush)

3.3. Bucket Fill

3.4. Blend

3.5. Pencil

3.6. Paintbrush

3.7. Eraser

3.8. Airbrush Tool

3.9. Ink

3.10. Clone

3.11. Heal

3.12. Perspective Clone

3.13. Blur/Sharpen

3.14. Smudge

3.15. Dodge or Burn

4. Transform Tools

4.1. Common Features

4.2. Move

4.3. Align

4.4. Crop

4.5. Rotate

4.6. Scale

4.7. Shear

4.8. Perspective

4.9. Flip

5. Color Tools

5.1. Color Balance

5.2. Hue-Saturation

5.3. Colorize

5.4. Brightness-Contrast tool

5.5. Threshold

5.6. Levels

5.7. Curves

5.8. Posterize

5.9. Desaturate

6. Other

6.1. Paths

6.2. Color Picker

6.3. Zoom

6.4. Measure

6.5. Text

7. Color and Indicator Area

7.1. Color Area

7.2. Indicator Area

7.3. Active image Area

14. Dialogs

1. Dialog Introduction

2. Image Structure Related Dialogs

2.1. Layers Dialog

2.2. “Channels” Dialog

2.3. “Paths” Dialog

2.4. Colormap Dialog

2.5. Histogram dialog

2.6. Navigation Dialog

2.7. Undo History Dialog

3. Image-content Related Dialogs

3.1. The “FG/BG Color” Dialog

3.2. “Brushes” Dialog

3.3. Patterns Dialog

3.4. Gradients Dialog

3.5. Palettes Dialog

3.6. Fonts Dialog

4. Image Management Related Dialogs

4.1. “Buffers” Dialog

4.2. Images Dialog

4.3. Document History Dialog

4.4. Templates Dialog

5. Misc. Dialogs

5.1. Tools Dialog

5.2. Device Status Dialog

5.3. Error Console

5.4. Export File

5.5. Sample Points Dialog

5.6. Pointer Dialog

15. Menus

1. Introduction to Menus

1.1. Context Menus

1.2. Tear-off menus

2. The “File” Menu

2.1. File menu

2.2. New

2.3. Create

2.4. Open

2.5. Open as Layers

2.6. Open Location

2.7. Open Recent

2.8. Save

2.9. Save as

2.10. Save a Copy

2.11. Save as Template

2.12. Revert

2.13. Print

2.14. Close

2.15. Close all

2.16. Quit

3. The “Edit” Menu

3.1. “Edit” Menu Entries

3.2. Undo

3.3. Redo

3.4. Fade...

3.5. Undo History

3.6. Cut

3.7. Copy

3.8. Copy Visible

3.9. Paste

3.10. Paste Into

3.11. Paste as...

3.12. Buffers

3.13. Clear

3.14. Fill with FG Color

3.15. Fill with BG Color

3.16. Fill with Pattern

3.17. Stroke Selection

3.18. Stroke Path

3.19. The “Preferences” Command

3.20. Keyboard Shortcuts

3.21. The Module Manager

3.22. Units

4. The “Select” Menu

4.1. Introduction to the “Select” Menu

4.2. Select All

4.3. None

4.4. Invert

4.5. Float

4.6. By Color

4.7. From Path

4.8. Selection Editor

4.9. Feather

4.10. Sharpen

4.11. Shrink

4.12. Grow

4.13. Border

4.14. Rounded Rectangle

4.15. Distort

4.16. Toggle QuickMask

4.17. Save to Channel

4.18. To Path

5. The “View” Menu

5.1. Introduction to the “View” Menu

5.2. New View

5.3. Dot for Dot

5.4. Zoom

5.5. Shrink Wrap

5.6. Full Screen

5.7. Navigation Window

5.8. Display Filters

5.9. Show Selection

5.10. Show Layer Boundary

5.11. Show Guides

5.12. Show Grid

5.13. Show Sample Points

5.14. Snap to Guides

5.15. Snap to Grid

5.16. Snap to Canvas

5.17. Snap to Active Path

5.18. Padding Color

5.19. Show Menubar

5.20. Show Rulers

5.21. Show Scrollbars

5.22. Show Statusbar

6. The “Image” Menu

6.1. Overview

6.2. Duplicate

6.3. Mode

6.4. RGB mode

6.5. Grayscale mode

6.6. Indexed mode

6.7. Transform

6.8. Flip Horizontally; Flip Vertically

6.9. Rotation

6.10. Guillotine

6.11. Canvas Size

6.12. Fit Canvas to Layers

6.13. Fit Canvas to Selection

6.14. Print Size

6.15. Scale Image

6.16. Crop to Selection

6.17. Autocrop Image

6.18. Zealous Crop

6.19. Merge Visible Layers

6.20. Flatten Image

6.21. Guides

6.22. New Guide

6.23. New Guide (by Percent)

6.24. New Guides from Selection

6.25. Remove all guides

6.26. Configure Grid

6.27. Align Visible Layers

6.28. Image Properties

7. The “Layers” Menu

7.1. Introduction to the “Layer” Menu

7.2. New Layer

7.3. New From Visible

7.4. Duplicate layer

7.5. Anchor layer

7.6. Merge Down

7.7. Delete Layer

7.8. The Text Commands of the Layer Menu

7.9. Discard Text Information

7.10. “Stack” Submenu

7.11. Select Previous Layer

7.12. Select Next Layer

7.13. Select Top Layer

7.14. Select Bottom Layer

7.15. Raise Layer

7.16. Lower Layer

7.17. Layer to Top

7.18. Layer to Bottom

7.19. The “Reverse Layer Order” command

7.20. Autocrop Layer

7.21. The “Mask” Submenu

7.22. Add Layer Mask

7.23. Apply Layer Mask

7.24. Delete Layer Mask

7.25. Show Layer Mask

7.26. Edit Layer Mask

7.27. Disable Layer Mask

7.28. Mask to Selection

7.29. Add Layer Mask to Selection

7.30. Subtract Layer Mask from Selection

7.31. Intersect Layer Mask with Selection

7.32. The “Transparency” Submenu of the “Layer” menu

7.33. Add Alpha Channel

7.34. Remove Alpha Channel

7.35. Color to Alpha

7.36. Semi-flatten

7.37. Threshold Alpha

7.38. Alpha to Selection

7.39. Add Alpha channel to Selection

7.40. Subtract from Selection

7.41. Intersect Alpha channel with Selection

7.42. The “Transform” Submenu

7.43. Flip Horizontally

7.44. Flip Vertically

7.45. Rotate 90 degrees CW

7.46. Rotate 90 degrees CCW

7.47. Rotate 180 degrees

7.48. Arbitrary Rotation

7.49. Offset

7.50. Layer Boundary Size

7.51. Layer to Image Size

7.52. Scale Layer

7.53. Crop to Selection

8. The “Colors” Menu

8.1. Introduction to the “Colors” Menu

8.2. Colors Tools

8.3. Invert

8.4. Value Invert

8.5. Use GEGL

8.6. The “Auto” Submenu

8.7. Equalize

8.8. White Balance

8.9. Color Enhance

8.10. Normalize

8.11. Stretch Contrast

8.12. Stretch HSV

8.13. The “Components” Submenu

8.14. Channel Mixer

8.15. Compose

8.16. Decompose

8.17. Recompose

8.18. The “Map” Submenu

8.19. Rearrange Colormap

8.20. Set Colormap

8.21. Alien Map

8.22. Color Exchange

8.23. Gradient Map

8.24. Palette Map

8.25. Rotate Colors

8.26. Sample Colorize

8.27. The “Info” Submenu

8.28. Histogram

8.29. Border Average

8.30. Colorcube Analysis

8.31. Smooth Palette

8.32. The Color Filters

8.33. Colorify

8.34. Color to Alpha

8.35. Filter Pack

8.36. Hot

8.37. Max RGB

8.38. Retinex

9. The “Tools” Menu

9.1. Introduction to the “Tools” Menu

10. The “Filters” Menu

10.1. Introduction to the “Filters” Menu

10.2. Repeat Last

10.3. Re-show Last

10.4. Reset All Filters

10.5. The “Script-Fu” Submenu

11. The “Windows” Menu

11.1. “Windows” Menu Entries

11.2. The “Recently Closed Docks” submenu

11.3. The “Dockable Dialogs” submenu

12. The “Help” Menu

12.1. Introduction to the “Help” Menu

12.2. Help

12.3. Context Help

12.4. Tip of the Day

12.5. About

12.6. Plug-In Browser

12.7. The Procedure Browser

12.8. GIMP online

16. Filters

1. Introduction

1.1. Preview

2. Blur Filters

2.1. Introduction

2.2. Blur

2.3. Gaussian Blur

2.4. Selective Gaussian Blur

2.5. Motion Blur

2.6. Pixelise

2.7. Tileable Blur

3. Enhance Filters

3.1. Introduction

3.2. Deinterlace

3.3. Despeckle

3.4. NL Filter

3.5. Red Eye Removal

3.6. Destripe

3.7. Unsharp Mask

3.8. Sharpen

4. Distort Filters

4.1. Introduction

4.2. Blinds

4.3. Curve Bend

4.4. Emboss

4.5. Engrave

4.6. Erase Every Other Row

4.7. IWarp

4.8. Lens Distortion

4.9. Mosaic

4.10. Newsprint

4.11. Page Curl

4.12. Polar Coords

4.13. Ripple

4.14. Shift

4.15. Value Propagate

4.16. Video

4.17. Waves

4.18. Whirl and Pinch

4.19. Wind

5. Light and Shadow Filters

5.1. Introduction

5.2. Gradient Flare

5.3. Lens Flare

5.4. Lighting Effects

5.5. Sparkle

5.6. Supernova

5.7. Drop Shadow

5.8. Perspective

5.9. Xach-Effect

5.10. Apply Lens

5.11. Glass Tile

6. Noise Filters

6.1. Introduction

6.2. Hurl

6.3. RGB Noise

6.4. Pick

6.5. Scatter HSV

6.6. Slur

6.7. Spread

7. Edge-Detect Filters

7.1. Introduction

7.2. Difference of Gaussians

7.3. Edge

7.4. Laplace

7.5. Neon

7.6. Sobel

8. Generic Filters

8.1. Introduction

8.2. Convolution Matrix

8.3. Dilate

8.4. Erode

9. Combine Filters

9.1. Introduction

9.2. Depth Merge

9.3. Film

10. Artistic Filters

10.1. Introduction

10.2. Cartoon

10.3. Photocopy

10.4. GIMPressionist

10.5. GIMPressionist - Orientation Map Editor

10.6. GIMPressionist - Size Map Editor

10.7. Cubism

10.8. Apply Canvas

10.9. Predator

10.10. Van Gogh (LIC)

10.11. Soft Glow

10.12. Oilify

11. Decor Filters

11.1. Introduction

11.2. Add Bevel

11.3. Add Border

11.4. Coffee Stain

11.5. Fuzzy Border

11.6. Old Photo

11.7. Round Corners

11.8. Slide

11.9. Stencil Carve

12. Map Filters

12.1. Introduction

12.2. Bump Map

12.3. Displace

12.4. Fractal Trace

12.5. Illusion

12.6. Make Seamless

12.7. Map Object

12.8. Paper Tile

12.9. Small Tiles

12.10. Tile

12.11. Warp

13. Rendering Filters

13.1. Introduction

13.2. Plasma

13.3. Solid Noise

13.4. Flame

13.5. IFS Fractal

13.6. Diffraction Patterns

13.7. CML Explorer

13.8. Grid

13.9. Maze

13.10. Jigsaw

13.11. Qbist

13.12. Checkerboard

13.13. Sinus

13.14. Fractal Explorer

13.15. Gfig

13.16. Sphere Designer

14. Web Filters

14.1. Introduction

14.2. ImageMap

14.3. Semi-Flatten

14.4. Slice

15. Animation Filters

15.1. Optimize

15.2. Playback

16. Alpha to Logo Filters

16.1. Introduction

16.2. 3D Outline

16.3. Alien Glow

16.4. Alien Neon

16.5. Basic I

16.6. Basic II

16.7. Blended

16.8. Bovination

16.9. Chalk

16.10. Chip Away

16.11. Chrome

16.12. Comic Book

16.13. Cool Metal

16.14. Frosty

16.15. Glossy

16.16. Glowing Hot

16.17. Gradient Bevel

16.18. Neon

16.19. Particle Trace

16.20. Starburst

16.21. Starscape

16.22. Textured

I. Keys and Mouse Reference

Help — Key reference for Help menu

Tools — Key reference for the Tools menu

File — Key reference for the File menu

Dialogs — Key reference for Dockable Dialogs submenu

View — Key reference for View menu

Edit — Key reference for Edit menu

Layers — Key reference for Layers menu

Selections — Key reference for Selections menu

Filters — Key reference for Filters menu

Zoom tool — Key reference for the Zoom tool submenu

Glossary

Bibliography

A. GIMP History

1. The Very Beginning

2. The Early Days of GIMP

3. The One to Change the World

4. Version 2.0

5. What's New in GIMP 2.2?

6. What's New in GIMP 2.4?

B. Reporting Bugs and Requesting Enhancements

1. Making sure it's a Bug

2. Reporting the Bug

3. What Happens to a Bug Report after you Submit it

C. GNU Free Documentation License

1. PREAMBLE

2. APPLICABILITY AND DEFINITIONS

3. VERBATIM COPYING

4. COPYING IN QUANTITY

5. MODIFICATIONS

6. COMBINING DOCUMENTS

7. COLLECTIONS OF DOCUMENTS

8. AGGREGATION WITH INDEPENDENT WORKS

9. TRANSLATION

10. TERMINATION

11. FUTURE REVISIONS OF THIS LICENSE

12. ADDENDUM: How to use this License for your documents

D. Eeek! There is Missing Help

Index