First of all I’d admin that I like Graphviz in Trac quite much. It allows you to create good diagrams and collaboration pictures inside wiki page of the Trac. Wikitopdf plugin, with all it limitations, allows you to export your wiki pages in PDF form (internally it is using the htmldoc library and here appears limitations). The problem I faced with: wikitopdf is not working correctly by default with the generated images. And graphviz_dir parameter doesn’t really helps. Additionally, wikitopdf…