dot -Tpdf -o R.pdf R.gv
It produces a pdf, but some pdf viewers don't show it correctly. Foxit and Adobe Reader work fine, but Preview (OS X) and TeXworks (with the poppler viewing library do not).
The attached file is a screenshot (TeXworks.png) of the output of similar experiments in TeXworks. OS X Preview gives a similar display.
Notice that in each pdf image the first character is omitted and it is omitted from every single instance within that image.
As I said, some viewers show it correctly; others don't. Is there any chance that dot is producing a pdf that is not up to spec?
Input file: b1920.gv
Output file: b1920.pdf
[erg] Here is the original output in png, but for some different graph.