@GIS_Bandit for user loaded GeoPDFs, I hope markup someday can be easily converted to first class geospatial data or Field Maps can use a default user feature service/geopackage for generic data collection. I cannot recommend end user loaded GeoPDFs in Field Maps when markup is just a visual aid as they’ll expect that I can easily get that into a GIS. Avenza Pro at least can export data to useful formats