I am trying to create a pdf with the pdfa conformance PdfaConformanceEnum.PDFA_3B but it won’t create a pdf in this format as I export it.

This is the configuration I used to try creating a PDFA_3B file. What do I miss?

SimplePdfExporterConfiguration exportConfig = new SimplePdfExporterConfiguration();
exportConfig.setPdfVersion(PdfVersionEnum.VERSION_1_7);
exportConfig.setPdfaConformance(PdfaConformanceEnum.PDFA_3B);
exportConfig.setIccProfilePath("AdobeRGB1998.icc");
exportConfig.setMetadataAuthor("Your Name");
exportConfig.setTagged(true);
exportConfig.setEmbedIccProfile(true);

exporter.setConfiguration(exportConfig);
exporter.exportReport();