If you already have locally-installed copies of Ant and the other required tools, install either the minimal or standard package.

1. Download the minimal or standard package from SourceForge.

   Package	File name
   Minimal	DITA-OT1.8.4_minimal_bin.tar.gz
   Standard	DITA-OT1.8.4_standard_bin.tar.gz

   For production use, we recommend that you use the latest stable release.
2. Extract the contents of the package into an installation directory.
   Note: You can extract the files either to your private home directory for your exclusive use or to the /usr/local/share/ directory, if you want to share the DITA-OT with other users.
3. Verify that the JAVA_HOME environment variable is set.

   export JAVA_HOME=<JRE_dir>

4. Verify that the ANT_HOME environment variable is been set.

   export ANT_HOME=<Ant_dir>

5. Verify that the PATH environment variable includes the Java and Ant executable files.

   export PATH=$JAVA_HOME/bin:$ANT_HOME/bin:$PATH

6. Set the DITA_HOME environment variable to point to the DITA-OT installation directory.

   export DITA_HOME=<DITA-OT_dir>

7. Set up the CLASSPATH environment variable.

   export CLASSPATH=$DITA_HOME/lib/dost.jar:$CLASSPATH
   export CLASSPATH=$DITA_HOME/lib:$CLASSPATH
   export CLASSPATH=$DITA_HOME/lib/resolver.jar:$CLASSPATH
   export CLASSPATH=$DITA_HOME/lib/commons-codec-1.4.jar:$CLASSPATH

8. Optional: If you use Ant, version 1.8 or later, set up the CLASSPATH environment variable to include Apache Xerces.

   export CLASSPATH=<xerces_dir>/xercesImpl.jar:<xerces_dir>/xml-apis.jar:$CLASSPATH

9. Set up the XSLT processor:

   Processor	Action
   Saxon	Set up the CLASSPATH environment variable to include the Saxon JAR files, for example: export CLASSPATH=<saxon_dir>/saxon9.jar:<saxon_dir>/saxon9-dom.jar:$CLASSPATH Set up the ANT_OPTS environment variable, for example: export ANT_OPTS=$ANT_OPTS -Djavax.xml.transform.TransformerFactory=net.sf.saxon.TransformerFactoryImpl
   Xalan	Set up the CLASSPATH environment variable to include the Xalan JAR files, for example: export CLASSPATH=<xalan_dir>/xalan.jar:$CLASSPATH

10. Optional: For index processing, set up ICU for Java.

    export CLASSPATH=<icu4j_dir>/icu4j.jar:$CLASSPATH

11. Optional: For JavaHelp, set the JHHOME environment variable.

    export JHHOME=<javahelp_dir>

12. Optional: For PDF output, set up the XSL-FO processor:

    Processor	Action
    FOP	Add the FOP installation directory to the local.properties file as the fop.home property, for example: fop.home=/usr/share/java/fop
    RenderX	Add the RenderX installation directory to the local.properties file as the xep.dir property, for example: xep.dir=/usr/share/java/xep
    Antenna House	Add the AH Formatter installation directory to the local.properties file as the axf.path property, for example: axf.path=/usr/share/java/AHFormatterV6

13. Test the DITA-OT installation by transforming the sample files.
    The samples\ant_sample directory contains Ant scripts designed to build various output formats.

    /usr/local/share/DITA-OT1.8.4$ ant -f samples/ant_sample/sample_all.xml

    The generated output is written to the DITA-dir\out\samples directory. The following output formats are generated:

    • Docbook
    • Eclipse help
    • HTML Help
    • ODT
    • JavaHelp
    • PDF
    • TocJS
    • TROFF
    • XHTML