I need to achieve that everything that is printed, i want to have a copy of it. I know that everything goes to spool/PRINTER folder and then deleted. One work around i did was to set datatype of printer properties for every printer to “NT EMF 1.003”.

Now this works whenever a thermal printer gives print command, my service copies it and since emf is easy to make png etc.

Now issue comes with where datatype is RAW, i cannot decode raw data to readable, and every raw data is specific to printer vendor’s format.

Is there any way where i always get EMF file? Can i write my printer driver for it? and make its copy before printing then trigger main printing process?

I dont want to hamper printing process, but do need copy of every emf file that goes through, I can convert those NT EMF 1.003 based .spl files back to .emf, but dealing with raw is issue, Thanks in advance.