10.0
10.1
11.0
11.1
11.2
11.3
12.0
12.1
6.0
6.1
6.2
6.2.0
6.2.0-rc1
6.2.0-rc2
6.3
6.3-rc1
6.3-rc2
6.3-rc3
7.10
7.4
7.5
7.6
7.6-blfs
7.6-systemd
7.7
7.8
7.9
8.0
8.1
8.2
8.3
8.4
9.0
9.1
basic
bdubbs/svn
elogind
gnome
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kde5-13430
kde5-14269
kde5-14686
kea
ken/TL2024
ken/inkscape-core-mods
ken/tuningfonts
krejzi/svn
lazarus
lxqt
nosym
perl-modules
plabs/newcss
plabs/python-mods
python3.11
qt5new
rahul/power-profiles-daemon
renodr/vulkan-addition
reorg
systemd-11177
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trunk
upgradedb
v1_0
v5_0
v5_0-pre1
v5_1
v5_1-pre1
xry111/intltool
xry111/llvm18
xry111/soup3
xry111/test-20220226
xry111/xf86-video-removal
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Last change
on this file since f45b1953 was f45b1953, checked in by Mark Hymers <markh@…>, 22 years ago |
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Initial revision
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@3 af4574ff-66df-0310-9fd7-8a98e5e911e0
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| 1 | <sect2>
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| 2 | <title>Introduction to libungif</title>
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| 3 |
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| 4 | <screen>Download location: <ulink url="&libungif-download;"/>
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| 5 | Version used: &libungif-version;
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| 6 | Package size: &libungif-size;
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| 7 | Estimated Disk space required: &libungif-buildsize;</screen>
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| 8 |
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| 9 | <para>The libungif package contains libraries for reading all gifs and
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| 10 | writing uncompressed ones as well as programs for converting and working
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| 11 | with gif files. The libraries are useful for any graphics program
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| 12 | wishing to deal with gif files while the programs are useful for
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| 13 | conversion purposes as well as cleaning up images.</para>
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| 14 |
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| 15 | <para>The reason libungif only writes uncompressed gifs is due to a
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| 16 | legal issue with LZW compression (which Unisys claims a patent on).
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| 17 | Reading gifs is not a problem as the uncompression routines do not seem
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| 18 | to be limited in this way. Note that this has in the past been
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| 19 | disputed. The best way to avoid this whole mess is to simply use
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| 20 | libungif for looking at gif images on the web, whilst in any pages which
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| 21 | you design, use the open source png format instead (which uses, not
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| 22 | surprisingly, the libpng library) which has no patent issues at
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| 23 | all.</para>
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| 24 |
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| 25 | </sect2>
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