Specify PDF scale
neato -Goverlap=scale -Tpdf produces a graph whose size is 44063 x 36395 pts or 612 x 505 inches. I tried adding the
-s scale option
neato -Goverlap=scale -s300 -Tpdf but it has no effect on the size of the resulting PDF. I'd like the exact same graph layout, but change the scale so that the size of the graph is ~10 inches or so.
Preview on macOS freaks out a bit when the apparent size is so large, and refuses to let you zoom out and view the whole graph.