Answer
Use the PdfArchiveSet endpoint on the ReportArchive projection — this is the documented, purpose-built API for retrieving an archived report PDF by its result key, rather than needing to reconstruct report generation externally.
Use the PdfArchiveSet endpoint on the ReportArchive projection — this is the documented, purpose-built API for retrieving an archived report PDF by its result key, rather than needing to reconstruct report generation externally.