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Changes: - DESCR has 80 culumns - whitespace 1.37: ===== - Fix bug where combining `--rotate-X' and `-O' options would cause a segmentation fault. Reported by Dan Lasley <Dan_Lasley@hilton.com>. - Rearrange source tree. 1.36: ===== * Fix subscript-out-of-range error in main.c reported by Andrea Suatoni. 1.35: ===== - Fixed bug where `--crop' could cause a segmentation fault, present since 1.32 or 1.33. Reported by Tom Schumm <phong@phong.org>. 1.34: ===== - Fixed bug where combining `--crop' and `-O' options could corrupt output. Reported by Tom Schumm <phong@phong.org>. 1.33: ===== - Be more careful about time while animating. In particular, prepare frames before they are needed, so that they can be displayed exactly when required. Problem reported by Walter Harms <WHarms@bfs.de>. - More warning fixes. 1.32: ===== - Add `--multifile' option handling concatenated GIF files. This is useful for scripts. For example, `gifsicle --multifile -' will merge all GIF files written to its standard input into a single animation. - More fixes for spurious background warnings. 1.31: ===== - Changed behavior of `--crop X,Y+WIDTHxHEIGHT' option when WIDTH or HEIGHT is negative. Previously, zero or negative WIDTH and HEIGHT referred to the image's entire width or height. Thus, the option `--crop 10,0+0x0' would always lead to an error, because the crop left position (10) plus the crop width (the image width) was 10 pixels beyond the image edge. The new behavior measures zero or negative WIDTH and HEIGHT relative to the image's bottom-right corner. - Changed background behavior. Hopefully the only user-visible effect will be fewer spurious warnings. - Fixed a bug that could corrupt output when optimizing images with `-O2' that had more than 256 colors. 1.30: ===== - Fixed bug in ungif code: Writing a large ungif could corrupt memory, leading eventually to bad output. This bug has been present since Gifsicle could write ungifs! Bad files and assistance provided by Jeff Brown <jabrown@ipn.caida.org>.
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1.3 KiB
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23 lines
1.3 KiB
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Gifsicle is a UNIX command-line tool for creating, editing, and getting
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information about GIF images and animations. You can also extract frames from
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animations, or replace, delete, or insert frames into existing animations.
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Some more gifsicle features:
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- Batch mode for changing GIFs in place.
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- Prints detailed information about GIFs, including comments.
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- Control over interlacing, comments, looping, transparency...
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- Creates well-behaved GIFs: removes redundant colors, only uses
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local color tables if it absolutely has to (local color tables
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waste space and can cause viewing artifacts), etc.
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- It can shrink colormaps and change images to use the Web-safe
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palette (or any colormap you choose).
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- It can optimize your animations! This stores only the changed
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portion of each frame, and can radically shrink your GIFs. You
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can also use transparency to make them even smaller. Gifsicle's
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optimizer is pretty powerful, and usually reduces animations
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to within a couple bytes of the best commercial optimizers.
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- Unoptimizing animations, which makes them easier to edit.
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Two other programs are included with gifsicle: gifview is a lightweight
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animated-GIF viewer which can show animations as slideshows or in real
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time, and gifdiff compares two GIFs for identical visual appearance.
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