Ghostscript option information : https://www.ghostscript.com/doc/current/Use.htm#OptionsGhostscript Install : [link]You have Ghostscript installed, right? Otherwise sudo apt-get install ghostscriptThis is important and installs the headers (iapi.h etc) which are required but don't come with the default Ghostscript package: sudo apt-get install libgs-devI also needed sudo apt-get install gs-espFo..