Some samples how to create PDF/A3 files and PDF/A3 files with embedded files using Apache PDFBox and the source code for the Mustang project.
Subject to the Apache license http://www.apache.org/licenses/LICENSE-2.0.html
Requires Maven to run. Use "mvn test" to generate the output for the test PDF file attachments, chdir to mustang and use "mvn package" to build the Mustang JAR (more info in the mustang documentation).
Developers: Thomas Chojecki and Jochen Stärk. For questions please contact Jochen at jstaerk [at] usegroup.de