According to the man page: "-D, --export-area-drawing In PNG , PDF , PS , and EPS export, exported area is the drawing (not canvas), i.e. the bounding box of all objects of the document (or of the exported object if --export-id is used)."
According to the man page: area-drawing
"-D, --export-
In PNG , PDF , PS , and EPS export, exported area is the drawing (not canvas), i.e. the bounding box of all objects of the document (or of the exported object if --export-id is used)."