Changeset e1d7dec for general/graphlib/libungif/libungif-intro.xml
- Timestamp:
- 09/14/2003 08:28:20 PM (21 years ago)
- Branches:
- 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, 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, systemd-11177, systemd-13485, trunk, upgradedb, v5_0, v5_0-pre1, v5_1, v5_1-pre1, xry111/intltool, xry111/llvm18, xry111/soup3, xry111/test-20220226, xry111/xf86-video-removal
- Children:
- 461626e
- Parents:
- b3ae387
- File:
-
- 1 edited
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general/graphlib/libungif/libungif-intro.xml
rb3ae387 re1d7dec 1 1 <sect2> 2 <title>Introduction to libungif</title>2 <title>Introduction to <application>libungif</application></title> 3 3 4 < screen>Download location (HTTP): <ulink url="&libungif-download-http;"/>5 Download location (FTP): <ulink url="&libungif-download-ftp;"/> 6 Version used: &libungif-version; 7 Package size: &libungif-size; 8 Estimated Disk space required: &libungif-buildsize; 9 Estimated build time: &libungif-time;</screen>4 <para>The libungif package contains libraries for reading all 5 <acronym>GIF</acronym>s and writing uncompressed ones as well as programs for 6 converting and working with <acronym>GIF</acronym> files. The libraries are 7 useful for any graphics program wishing to deal with <acronym>GIF</acronym> 8 files while the programs are useful for conversion purposes as well as cleaning 9 up images.</para> 10 10 11 <para>The libungif package contains libraries for reading all gifs and 12 writing uncompressed ones as well as programs for converting and working 13 with gif files. The libraries are useful for any graphics program 14 wishing to deal with gif files while the programs are useful for 15 conversion purposes as well as cleaning up images.</para> 11 <para>The reason libungif only writes uncompressed <acronym>GIF</acronym>s 12 is due to a legal issue with <acronym>LZW</acronym> compression (which Unisys 13 claims a patent on). Reading <acronym>GIF</acronym>s is not a problem as the 14 uncompression routines do not seem to be limited in this way. Note that this 15 has in the past been disputed. The best way to avoid this whole mess is to 16 simply use libungif for looking at <acronym>GIF</acronym> images on the web, 17 while in any pages which you design, use the open source <acronym>PNG</acronym> 18 format instead (which uses, not surprisingly, the libpng library) which has no 19 patent issues at all.</para> 16 20 17 < para>The reason libungif only writes uncompressed gifs is due to a18 legal issue with LZW compression (which Unisys claims a patent on). 19 Reading gifs is not a problem as the uncompression routines do not seem 20 to be limited in this way. Note that this has in the past been 21 disputed. The best way to avoid this whole mess is to simply use 22 libungif for looking at gif images on the web, while in any pages which 23 you design, use the open source png format instead (which uses, not 24 surprisingly, the libpng library) which has no patent issues at 25 all.</para> 21 <sect3><title>Package information</title> 22 <itemizedlist spacing='compact'> 23 <listitem><para>Download (HTTP): <ulink url="&libungif-download-http;"/></para></listitem> 24 <listitem><para>Download (FTP): <ulink url="&libungif-download-ftp;"/></para></listitem> 25 <listitem><para>Download size: &libungif-size;</para></listitem> 26 <listitem><para>Estimated Disk space required: &libungif-buildsize;</para></listitem> 27 <listitem><para>Estimated build time: &libungif-time;</para></listitem></itemizedlist> 28 </sect3> 29 26 30 27 31 </sect2>
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