Thk @Akatik
I use Raspberry PI3b with WTware, for eatch shop, i have local Ip printer type HP OfficeJet 6700
i test with printer and rdp_printer
When i want to print text file ==> ok
But when i want to print PDF with photo, the printer start, print a lot and stop
"WTware needs printer driver locally " : you mean to install driver into remote server ?