I could solve the problem. I changes two things (not sure if it also work when I changed only one thing):
1) I downgraded to Princexml 6.0 2) I changed my PATH to use the prince executable which is installed in "usr/local/bin". Before, I used the one installed in "/usr/local/lib/price/bin". christian-muellers-macbook- pro:camel-manual cmueller$ mvn clean install [INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building Camel :: Manual 2.7.5 [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ camel-manual --- [INFO] Deleting /Users/cmueller/workspaceRelease/camel-2.7.5/tooling/camel-manual/target [INFO] [INFO] --- maven-antrun-plugin:1.2:run (create-prop) @ camel-manual --- [INFO] Executing tasks [echo] Maven version: 2.7.5 [echo] OSGi version: 2.7.5 [mkdir] Created dir: /Users/cmueller/workspaceRelease/camel-2.7.5/tooling/camel-manual/target [INFO] Executed tasks [INFO] [INFO] --- properties-maven-plugin:1.0-alpha-2:read-project-properties (default) @ camel-manual --- [INFO] [INFO] --- maven-remote-resources-plugin:1.1:process (default) @ camel-manual --- [INFO] Setting property: classpath.resource.loader.class => 'org.codehaus.plexus.velocity.ContextClassLoaderResourceLoader'. [INFO] Setting property: velocimacro.messages.on => 'false'. [INFO] Setting property: resource.loader => 'classpath'. [INFO] Setting property: resource.manager.logwhenfound => 'false'. [INFO] [INFO] --- maven-html-to-pdf:2.7.5:compile (default) @ camel-manual --- [INFO] Set the XSL transformer factory class name to be 'org.apache.xalan.xsltc.trax.TransformerFactoryImpl' [INFO] Downloading: http://camel.apache.org/book-in-one-page.html [INFO] Removed the set XSL transformer factory class name 'org.apache.xalan.xsltc.trax.TransformerFactoryImpl' from the system properties [INFO] Stored: /Users/cmueller/workspaceRelease/camel-2.7.5/tooling/camel-manual/target/site/manual/camel-manual-2.7.5.html [INFO] Converting to PDF with prince... [INFO] About to execute PrinceXml (see www.princexml.com) [INFO] prince /Users/cmueller/workspaceRelease/camel-2.7.5/tooling/camel-manual/target/site/manual/camel-manual-2.7.5.html /Users/cmueller/workspaceRelease/camel-2.7.5/tooling/camel-manual/target/site/manual/camel-manual-2.7.5.pdf [INFO] Stored: /Users/cmueller/workspaceRelease/camel-2.7.5/tooling/camel-manual/target/site/manual/camel-manual-2.7.5.pdf [INFO] [INFO] --- build-helper-maven-plugin:1.5:attach-artifact (attach-artifacts) @ camel-manual --- [INFO] [INFO] --- ianal-maven-plugin:1.0-alpha-1:verify-legal-files (default) @ camel-manual --- [INFO] [INFO] --- maven-install-plugin:2.3.1:install (default-install) @ camel-manual --- [INFO] Installing /Users/cmueller/workspaceRelease/camel-2.7.5/tooling/camel-manual/pom.xml to /Users/cmueller/.m2/repository/org/apache/camel/camel-manual/2.7.5/camel-manual-2.7.5.pom [INFO] Installing /Users/cmueller/workspaceRelease/camel-2.7.5/tooling/camel-manual/target/site/manual/camel-manual-2.7.5.pdf to /Users/cmueller/.m2/repository/org/apache/camel/camel-manual/2.7.5/camel-manual-2.7.5.pdf [INFO] Installing /Users/cmueller/workspaceRelease/camel-2.7.5/tooling/camel-manual/target/site/manual/camel-manual-2.7.5.html to /Users/cmueller/.m2/repository/org/apache/camel/camel-manual/2.7.5/camel-manual-2.7.5.html [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 1:24.680s [INFO] Finished at: Fri Jan 13 19:31:13 CET 2012 [INFO] Final Memory: 10M/142M [INFO] ------------------------------------------------------------------------ Thank you for your help, Christian