which allow for the easy addition of new file formats and new effect filters
and save animations in a convenient frame-as-layer format
rectangular or circular selection, freehand selection, and color selection.
the Smart Selection tool, known as the "Magic Wand", can be used to select contiguous
colors, and painting tools
with 48 standard brushes, plus facilities to create new ones. Brushes can be used
in hard-edged, soft-edged, or eraser modes, be applied at different opacities,
or used to apply various effects.
with RGB, HSV, colour wheel, CMYK, and mixing modes, plus tools to pick colours
from the image with various averaging options.
for hexadecimal colour codes (as used in HTML). While 'CMYK' is offered in the
Palette, GIMP, by default, works only in RGB, grayscale and index color modes.
supports gradients, which integrate into its other tools (such as brushes and
fills) to shade image areas with automated color blending.
includes a variety of built-in gradients, and as with the brushes, also allows
the user to customize and create their own gradient fills.
channels, and transparency
alpha channel support with layers and channels
Undo/Redo (limited only by diskspace)
tools including rotate, scale, shear and flip
tools including rectangle, ellipse, free, fuzzy and intelligent
path tool doing bezier and polygonal selections.
to paint a selection.
for layers, including transparent layers, which can be shown, hidden, or made
also supports transparent and semitransparent images. Channels add different types
of opacity and color effects to images.
made with the opacity slider in the Layers Dialog are not representedcorrectly
in the Transform tool previews. This can make lining up layers correctly more
scripts and filters
containing line segments or bezier curves can be made. Paths can be named, saved,
and painted with brushes, patterns, or various line styles.
are also an extremely powerful and useful selection tool, allowing you to create
complex selections. Intelligent Scissors (iScissors) tool can be used to auto-create
paths between regions defined by strong color-changes.
150 standard effects and filters, including Drop Shadow, Blur, Motion blur, Noise,
and much more