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also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">CTAN</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 15 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-15" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">15 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Comprehensive_TeX_Archive_Network" title="Comprehensive TeX Archive Network – German" lang="de" hreflang="de" data-title="Comprehensive TeX Archive Network" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/CTAN" title="CTAN – Spanish" lang="es" hreflang="es" data-title="CTAN" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Comprehensive_TeX_Archive_Network" title="Comprehensive TeX Archive Network – French" lang="fr" hreflang="fr" data-title="Comprehensive TeX Archive Network" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/CTAN" title="CTAN – Korean" lang="ko" hreflang="ko" data-title="CTAN" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/CTAN" title="CTAN – Italian" lang="it" hreflang="it" data-title="CTAN" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/CTAN" title="CTAN – Japanese" lang="ja" hreflang="ja" data-title="CTAN" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/CTAN" title="CTAN – Polish" lang="pl" hreflang="pl" data-title="CTAN" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/CTAN" title="CTAN – Portuguese" lang="pt" hreflang="pt" data-title="CTAN" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/CTAN" title="CTAN – Russian" lang="ru" hreflang="ru" data-title="CTAN" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/CTAN" title="CTAN – Simple English" lang="en-simple" hreflang="en-simple" data-title="CTAN" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/CTAN" title="CTAN – Serbian" lang="sr" hreflang="sr" data-title="CTAN" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/CTAN" title="CTAN – Serbo-Croatian" lang="sh" hreflang="sh" data-title="CTAN" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croatian" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/CTAN" title="CTAN – Swedish" lang="sv" hreflang="sv" data-title="CTAN" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/CTAN" title="CTAN – Ukrainian" lang="uk" hreflang="uk" data-title="CTAN" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/CTAN" title="CTAN – Chinese" lang="zh" hreflang="zh" data-title="CTAN" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1121988#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul 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class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Place where TeX related material and software can be found for download</div> <p><b>CTAN</b> (an <a href="/wiki/Acronym" title="Acronym">acronym</a> for "<b>Comprehensive TeX Archive Network</b>") is the authoritative place where <a href="/wiki/TeX" title="TeX">TeX</a> related material and <a href="/wiki/Software" title="Software">software</a> can be found for download. Repositories for other projects, such as the <a href="/wiki/MiKTeX" title="MiKTeX">MiKTeX</a> distribution of TeX, constantly <a href="/wiki/Mirrored_server" class="mw-redirect" title="Mirrored server">mirror</a> most of CTAN. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CTAN&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Before CTAN there were a number of people who made some TeX materials available for public download, but there was no systematic collection. At a podium discussion that Joachim Schrod organized at the 1991 <a href="/w/index.php?title=EuroTeX&action=edit&redlink=1" class="new" title="EuroTeX (page does not exist)">EuroTeX</a> conference, the idea arose to bring together the separate collections. (Joachim was interested in this topic because he is active in the TeX community since 1983 and ran one of the largest <a href="/wiki/Ftp" class="mw-redirect" title="Ftp">ftp</a> servers in Germany at that time.) </p><p>CTAN was built in 1992, by <a href="/w/index.php?title=Rainer_Sch%C3%B6pf&action=edit&redlink=1" class="new" title="Rainer Schöpf (page does not exist)">Rainer Schöpf</a> and Joachim Schrod in Germany, <a href="/wiki/Sebastian_Rahtz" title="Sebastian Rahtz">Sebastian Rahtz</a> in the UK, and <a href="/w/index.php?title=George_Greenwade&action=edit&redlink=1" class="new" title="George Greenwade (page does not exist)">George Greenwade</a> in the U.S. (George came up with the name).<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Today,<sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Manual_of_Style/Dates_and_numbers#Chronological_items" title="Wikipedia:Manual of Style/Dates and numbers"><span title="The time period mentioned near this tag is ambiguous. (December 2021)">when?</span></a></i>]</sup> there are still only four people who maintain the archives and the TeX catalogue updates: Erik Braun, Ina Dau, Manfred Lotz, and Petra Ruebe-Pugliese. The site structure was put together at the start of 1992 – Sebastian did the main work – and synchronized at the start of 1993. The <a href="/wiki/TeX_Users_Group" class="mw-redirect" title="TeX Users Group">TeX Users Group</a> provided a framework, a Technical Working Group, for this task's organization. CTAN was officially announced at the <a href="/w/index.php?title=EuroTeX&action=edit&redlink=1" class="new" title="EuroTeX (page does not exist)">EuroTeX</a> conference at <a href="/wiki/Aston_University" title="Aston University">Aston University</a>, 1993. The WEB server itself is maintained by Gerd Neugebauer. </p><p>The English site has been stable since the beginning, but both the American and the German sites have moved thrice. The American site was first at <a href="/wiki/Sam_Houston_State_University" title="Sam Houston State University">Sam Houston State University</a> under George Greenwade, in 1995 it moved to <a href="/wiki/UMass_Boston" class="mw-redirect" title="UMass Boston">UMass Boston</a> where it was run by <a href="/w/index.php?title=Karl_Berry&action=edit&redlink=1" class="new" title="Karl Berry (page does not exist)">Karl Berry</a>. In 1999 it moved to <a href="/wiki/Saint_Michael%27s_College" title="Saint Michael's College">Saint Michael's College</a> in <a href="/wiki/Colchester,_Vermont" title="Colchester, Vermont">Colchester</a>, <a href="/wiki/Vermont" title="Vermont">Vermont</a>. There it was announced to go off-line in the end of January 2011.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Since January 2013, a mirror has been hosted by the <a href="/wiki/University_of_Utah" title="University of Utah">University of Utah</a><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> (no upload node). The German site was first at the <a href="/wiki/University_of_Heidelberg" class="mw-redirect" title="University of Heidelberg">University of Heidelberg</a>, operated by Rainer; in 1999 it moved to the <a href="/wiki/University_of_Mainz" title="University of Mainz">University of Mainz</a>, also operated by Rainer; 2002 to the <a href="/wiki/University_of_Hamburg" title="University of Hamburg">University of Hamburg</a>, operated by Reinhard Zierke; finally in 2005 it moved to a commercial hosting company since the amount of traffic got too high to get sponsored by a university. The German site is subsidized by DANTE, the <a href="/wiki/Deutschsprachige_Anwendervereinigung_TeX" title="Deutschsprachige Anwendervereinigung TeX">Deutschsprachige Anwendervereinigung TeX</a>. </p><p>Today, the main CTAN nodes serve downloads of more than 6 TB per month, not counting its 94 mirror sites worldwide. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CTAN&action=edit&section=2" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/CPAN" title="CPAN">CPAN</a></li> <li><a href="/wiki/CRAN_(R_programming_language)" class="mw-redirect" title="CRAN (R programming language)">CRAN</a></li> <li><a href="/wiki/CEAN" title="CEAN">CEAN</a></li> <li><a href="/wiki/CKAN" title="CKAN">CKAN</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CTAN&action=edit&section=3" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFGreenwade1993" class="citation journal cs1">Greenwade, George D (1993). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20111106125622/https://tug.org/TUGboat/tb14-3/tb40green.pdf">"The Comprehensive Tex Archive Network (CTAN)"</a> <span class="cs1-format">(PDF)</span>. <i>TUGboat</i>. <b>14</b> (3). Archived from <a rel="nofollow" class="external text" href="https://tug.org/TUGboat/tb14-3/tb40green.pdf">the original</a> <span class="cs1-format">(PDF)</span> on November 6, 2011<span class="reference-accessdate">. Retrieved <span class="nowrap">January 21,</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=TUGboat&rft.atitle=The+Comprehensive+Tex+Archive+Network+%28CTAN%29&rft.volume=14&rft.issue=3&rft.date=1993&rft.aulast=Greenwade&rft.aufirst=George+D&rft_id=https%3A%2F%2Ftug.org%2FTUGboat%2Ftb14-3%2Ftb40green.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACTAN" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text">Jim Hefferon. <i><a rel="nofollow" class="external text" href="https://web.archive.org/web/20121110031855/https://groups.google.com/group/comp.text.tex/browse_frm/thread/83229dc961b35827/70601d7401621014?hl=de&lnk=gst&q=tug.ctan.org#70601d7401621014">tug.ctan.org offline</a></i>. Posting. comp.text.tex, 2011-01-30. Retrieved 2013-01-19.</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text">Steve Peter. <a rel="nofollow" class="external text" href="http://tug.org/pipermail/texhax/2013-January/020025.html"><i>January 2013 TUG news</i></a>. Posting. texhax, 2013-01-19. Retrieved 2013-01-21.</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CTAN&action=edit&section=4" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="official-website"><span class="url"><a rel="nofollow" class="external text" href="https://ctan.org/">Official website</a></span></span></li> <li><a rel="nofollow" class="external text" href="https://archive.today/20121209004851/http://dante.ctan.org/tex-archive/help/Catalogue/index.html">The TeX Catalogue Online</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist 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