Comprehensive TeX Archive Network
    The CTAN root directory
    
      This is the root of the Comprehensive
      TeX Archive Network directory tree.
      Most information in CTAN is contained in subdirectories:
    
    
      - biblio
 
      - 
        Systems for maintaining and presenting bibliographies within documents
        typeset using TeX
      
 
      - digests
 
      -  Collections of
        TeX mailing list digests,
        TeX-related electronic magazines, and indexes,
        etc., of printed publications
      
 
      - dviware
 
      - 
        Printer drivers and previewers, etc., for .dvi files
      
 
      - fonts
 
      - 
        Fonts written in Metafont, and support for using fonts from other
        sources (e.g., those in Adobe Type 1 format)
      
 
      - graphics
 
      - 
        Systems and TeX macros for producing graphics
      
 
      - help
 
      - 
        FAQs
        (de
        fr
        uk)
        and similar direct assistance
      
 
      - indexing
 
      - 
        Systems for maintaining and presenting indexes of documents typeset
        using TeX
      
 
      - info
 
      - 
        Manuals and extended how-to information; errata for
        TeX-related publications, collections of project
        (e.g., LaTeX and NTS)
        documents, etc.
      
 
      - install
 
      - 
        ZIP files of ready-to-install CTAN packages. The package contained in
        CTAN directory a/b/c/d/ appears as
        install/a/b/c/d.tds.zip – each such file may be unzipped
        directly into
        a TDS
        tree, and should contain no “tree prefix”
      
 
      - language
 
      - 
        Support for various languages; hyphenation patterns
      
 
      - macros
 
      -  TeX
        macros; several directories have significant sub-trees:
        
          - context
 
          - 
            The ConTeXt distribution
            and contributed material
          
 
          - generic
 
          -  Macros that work in several environments
 
          - latex
 
          - 
            The LaTeX
            distribution and contributed material
          
 
          - luatex
 
          - Macros that require the LuaTeX engine
 
          - plain
 
          -  Donald Knuth's example macro set and contributed material
 
          - xetex
 
          - Macros that require the XƎTeX engine
 
        
       
      - obsolete
 
      - 
        Material which is now obsolete, but which needs to remain
        on the archive for some reason (such as the 1992
        LaTeX 2.09
        distribution). The tree maintains a “shadow hierarchy”
        – for example obsolete/macros
        has the same basic structures macros.
      
 
      - support
 
      - 
        TeX support environments and the like
      
 
      - systems
 
      - 
        TeX systems;
        organised by operating environment, but also including:
        
          - knuth
 
          - Donald Knuth's current distribution.
 
          - generic
 
          - 
            Complete systems that can potentially operate in more than one
            operating environment.
          
 
          - MacTeX
 
          - The distribution of MacTeX for Mac OS X
 
          - 
            TeX Live
          
 
          - 
            The Live collection of freely distributable TeX
            material, including the TeX
            Live on-line installer.
          
 
          - MiKTeX
 
          - 
            The distribution of MiKTeX; CTAN provides a
            home for MiKTeX's package repository, part
            of its online installer.
          
 
        
       
  
      - tds
 
      - 
        The TeX Directory Structure standard
        (the output of the TUG TDS working group)
      
 
      - usergrps
 
      -  Information supplied by TeX User Groups
 
      - web
 
      - 
        Literate Programming tools and systems
      
 
    
    CTAN on the Web
    
      The home page for CTAN is at
      https://ctan.org,
      which provides several features:
    
    
    Searching CTAN
    
      You can search the content of the Catalogue with the
      following form on the CTAN site:
    
    
    
      In addition, CTAN archives maintain lists of their contents
      as plain text files, in a number of ways:
    
    
      - 
        Sorted by name
        (This is a big file…around 20M bytes).
      
 
      - 
        New or changed in the last 7 days
        (This is usually a more manageable size…)
      
 
    
    
    
      
        This is an experimental page. Comments, to
        the CTAN team,
        will be most welcome.
      
      Last updated 2020-03-31