jPDFPreflight is a Java library to verify PDF compliance with different standards, including PDF/A and PDF/X and to convert documents to these standards.
jPDFPreflight can check compliance with the following profiles:
jPDFWeb is a Java library to convert PDF documents to SVG / HTML5. The library can save to the local file system or to an output stream to be able to serve the document directly to a client browser when working within a J2EE server.