Two makes that immediately came to mind on seeing the picture were Pfalz and Albatross. Most "Albatri" had trapezoidal wings instead of square, though, and most Pfalz D.IIIs which would have had the aerodynamic shape were known for a much larger engine protrusion from the top of the fuselage (and a much lower top wing).
I'm not sure about the French origin of the plane; French (and British) biplanes of the era typically used radial engines, with the Se.5 being a notable exception (and the SE5 wasn't nearly so aerodynamic-looking).
My best guess is, maybe, a DFW C.V:
These were WWI reconnaissance aircraft that came in several different engine configurations as the war progressed. Austria's Aviatik firm made some of these as the C.VI, as well as some very similar designs like the C.1, C.II and C.III. Here's a picture of the C.III; body is similar but the lower wing is shorter:
The radiator in front of the top wing on the C.V is a little larger here than in your picture, but it's possible, even probable, that the radiator configuration also varied (could be as simple as a 90* rotation). Wing shape and strut configuration are very similar. Your picture may have been a "war prize" delivered to the French after the Armistice, and de-militarized (disarmed, markings removed) for civilian use.
Here's another C.V that looks a little more like yours but without the nose cone, but this makes it look like a much bigger plane than is depicted in your shot: