Testing using a watermark / border in darktable to show the exif data.

Exif String:

$(EXIF.MODEL) / $(EXIF.LENS)$(NL)$(EXIF.EXPOSURE) - f/$(EXIF.APERTURE) - ISO $(EXIF.ISO) - $(EXIF.FOCAL.LENGTH)mm$(NL)$(MONTH.LONG) $(DAY) $(YEAR) $(GPS.LATITUDE) / $(GPS.LONGITUDE)