PostScript is a computer language for creating vector graphics developped by Adobe Systems.
Qt is a cross-platform application development framework, widely used for the development of GUI programs.
In their latest major version (Qt5) the possibility to export graphics to PostScript was dropped:
the QPrinter::PostScriptFormat option
EpsEngine was developped in order to cover this lack and to enable Qt based applications to easily export graphics to the Encapsulated PostScript format
and is already used by >>