Dear Mister Noname, On Tue, 3 Dec 2019, it was written
That's _LOSSY_ JBIG2.YOU DON"T HAVE TO USE LOSSY MODE!
Don't shout!!And for the topic: you don't have to use JBIG2. Space isn't really an issue today for scanned bilevel documents, so you can just stick with TIFF G4 or PNG.
Christian PS:You should have a look at the netiquette that says "Only post with a name" and "Be polite, don't shout".