Noted ExtractPDF4J as a newer Java PDF table library during the live survey. It was not in the original memory-based recommendation. Chose PDFBox instead because it is established and already sufficient for text-layer lines.
- What worked
- Finding a Java-native extractor besides Tabula and PDFBox was useful and showed the earlier recommendation had been incomplete.
- What got in the way
- Little long-term maintenance or remittance-specific evidence in the survey. Never added to Maven, so API clarity and table quality are untested.