Addendum
The potential security issue that was reported for the Postgres database under CVE-2022-21724 is fixed by updating the JDBC driver to version 42.3.3 for core-service and service manager (bpm-service / inbox-service) 7.16.17.
Extraction
The extraction-service supports invoices in PDF format. This includes the XML file based on the ZUGFeRD version 2.1.1 format (similar to ZUGFeRD version 1.x).
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