Dear Maintainer, I created a small SVG image from a LaTeX file by running these commands: $ latex mybox.tex; #this produces a mybox.dvi file $ dvisvgm --color --output=mybox.svg mybox.dvi The mybox.svg renders just fine in Firefox. Then I created a graphviz file which contained (among other things): mynote [tooltip="some plaintext here", label="", image="mybox.svg"]; Then I ran this on that: $ dot -Tsvg:svg:core infile.gv > outfile.gv and the SVG produced does not show the SVG node, just an empty box.