cupsfilter(8) on Linux
The text 52f5cb92d9a3, as Debian 10 (Buster) shipped it.
convert a file to another format using cups filters
Flags it lists
-
--list-filters -
-D -
-U -
-c -
-d -
-e -
-i -
-j -
-m -
-n -
-o -
-p -
-t -
-u