Postscript is a surprisingly useful print file format although it's use does require taking time to learn (what is effectively) a stack based programming langua

Postscript is a surprisingly useful print file format although it's use does require taking time to learn (what is effectively) a stack based programming language. If you are wondering just what the key advantages are - well you end up with a compact, re-usable file structure that is searchable and (broadly) human sensible. An excellent format for archiving documents once they have been generated.