Hi @wayfaringrob ,
The parameter was intentionally removed from the UI due to the limitations associated with the PDF report generated by the python library matplotlib. This library has compatibility issues with certain languages and newer windows operating systems, which can result in missing fonts and consequently an empty PDF. In summary, relying on this method is not a sustainable solution to ensure the PDF report works effectively for all users. Instead, the new charts and geoprocessing messages are more standard and recommended ways to access the information. However, you can still create reports using arcpy. If you run the tool using arcpy, you can still access the PDF output parameter.
Since the parameter is there in arcpy, the documentation still has it. It is only hidden from the UI to encourage the use of charts and geoprocessing messages. We have also now added a note about it in the toolbox history for the next release.
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