The GNU Image Manipulation Program
(GIMP) is a powerful application that
can alter, manipulate, enhance, and create digital image files.
FIXME discusses how to start the application. The following
sections discuss the main features of the application.
12.3.1. Saving an Image
To save an image file, right-click on the image, choose
File, and select either
Save or Save
As. The Save Image
window opens. Navigate to the directory where you would like
to save your file. Enter a name for your file in the field at
the bottom of the window.
You must choose a file type for your image. By default, the
GIMP will save your file according
to the extension you type at the end of your file name. You
may also select the file type from the Determine
File Type drop-down menu above the file name
field. When you are ready to save, click the
OK button.
Depending on the file type you selected, another window with
options may open. Ingeneral, it is a good idea to accept the
settings that the GIMP suggests.
Click the OK button again to complete
the save process.
12.3.2. Editing an Image
To crop an image:
Open the image.
Right click on the image and select
Tools => Transform
Tools => Crop and
Resize.
Left-click and drag the mouse pointer to create a frame
that fits the part of the image to keep.
Click the Crop button in the window
that opens as you drag the frame across the image.
If you are unhappy with the cropped image, press
[Ctrl]-[Z].
To Rotate an Image:
Open the image.
Right-click on the image and select
Image =>
Transform, then select any of
the Flip or
Rotate options.
If you are unhappy with the changes, press
[Ctrl]-[Z].
To Add Text to an Image:
Open the image.
Right-click on the image and select
Tools => Paint
Tools => Text.
Left-click where the text should begin.
Type the text into the GIMP Text
Editor window.
Click the OK button.
Your text appears on the image.
If you are unhappy with the changes, press
[Ctrl]-[Z].
To apply a filter:
Open the file.
Right-click on the image and select
Filters.
Choose any of the filters available.
Choose options for the filter.
Click the OK button.
If you are unhappy with the changes, press
[Ctrl]-[Z].
To create a new image:
Choose File =>
New.
Ener the image size, image type, and fill type of the
file.
Click the OK button.
Edit and manipulate the image with the
GIMP's various tools.
Save your file.
While this chapter covers image applications briefly, there is
much more detailed information available. Refer to the
following resources if you are interested in learning more
about the applications in this chapter.
The GIMP has a help browser
accessible by choosing Help =>
Help... from the
GIMP toolbar menu. This is an
excellent place to begin searching for answers. However, if
the Help menu does not provide enough
information, try the following resources:
12.3.2.1. Useful Websites
The Web has several sites of interest if you are looking
for more detailed information about an application covered
in this chapter:
https://gimp-savvy.com/
— The companion website to the book
Grokking the GIMP, by Carey
Bunks. The entire book is also available on the site for
download
If you need in-depth information about the many
capabilities of the GIMP, try
your favorite bookstore. The following books were available
at the time of this writing:
The Artists' Guide to the
GIMP by Michael J. Hammel; Frank Kasper
and Associates, Inc.
GIMP Essential Reference by
Alex Harford; New Riders Publishing
GIMP for Linux Bible by
Stephanie Cottrell Bryant, et al; Hungry Minds, Inc.
GIMP: The Official Handbook
by Karin Kylander and Olof S. Kylander; Coriolis Group
Grokking the GIMP by Carey
Bunks; New Riders Publishing
Sams Teach Yourself GIMP in 24
Hours by Joshua and Ramona Pruitt; Sams
GIMP Pocket Reference by Sven
Neumann; O'Reilly and Associates