Thanks, Bulia, for applying the patch! I'd like to request the following further patch. You made w and h doubles, rather than ints, which makes sense, but the fabs is incorrect, because we have w<0 or h<0 on an empty document (I think they're -200000000 or something). That's why there is the sanity check later on.

361,362c361,362 < double w = fabs (d.x1 - d.x0); // width and height of bounding box, in points < double h = fabs (d.y1 - d.y0); ---

         double w = (double) (d.x1 - d.x0); // width and height of bounding box, in points
         double h = (double) (d.y1 - d.y0);

364c364 < ((int) w > 0 && (int) h > 0) // empty documents fail this sanity check ---

             (w > 0. && h > 0.) // empty documents fail this sanity check, have w<0, h<0