I always (or years) used the System Preferences -> Printers and Scanners to scan documents to PDF (text, B&W or color) using my Brother multifunction printer. All of a sudden, when I try to scan to PDF the attached file is what I get. When I use B&W or color to scan to JPG, the scan works correctly but I need PDF. I reset the printer to factory settings, reset the printing system and re-added the printer, downloaded the latest driver utilities from Brother, and even erased my MacPro late 2013, 32GB RAM and reinstalled the OS (Mojave) but the problem still exists.