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git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@1304 af4574ff-66df-0310-9fd7-8a98e5e911e0
32 lines
1.6 KiB
XML
32 lines
1.6 KiB
XML
<sect2>
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<title>Introduction to <application>libungif</application></title>
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<para>The libungif package contains libraries for reading all
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<acronym>GIF</acronym>s and writing non-compressed ones as well as programs for
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converting and working with <acronym>GIF</acronym> files. The libraries are
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useful for any graphics program wishing to deal with <acronym>GIF</acronym>
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files while the programs are useful for conversion purposes as well as cleaning
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up images.</para>
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<para>The reason libungif only writes non-compressed <acronym>GIF</acronym>s
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is due to a legal issue with <acronym>LZW</acronym> compression (which Unisys
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claims a patent on). Reading <acronym>GIF</acronym>s is not a problem as the
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decompression routines do not seem to be limited in this way. Note that this
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has in the past been disputed. The best way to avoid this whole mess is to
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simply use libungif for looking at <acronym>GIF</acronym> images on the web,
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while in any pages which you design, use the open source <acronym>PNG</acronym>
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format instead (which uses, not surprisingly, the libpng library) which has no
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patent issues at all.</para>
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<sect3><title>Package information</title>
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<itemizedlist spacing='compact'>
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<listitem><para>Download (HTTP): <ulink url="&libungif-download-http;"/></para></listitem>
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<listitem><para>Download (FTP): <ulink url="&libungif-download-ftp;"/></para></listitem>
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<listitem><para>Download size: &libungif-size;</para></listitem>
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<listitem><para>Estimated Disk space required: &libungif-buildsize;</para></listitem>
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<listitem><para>Estimated build time: &libungif-time;</para></listitem></itemizedlist>
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</sect3>
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</sect2>
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