Chris, I have never used SVG, but found this article that might be helpful: https://www.w3.org/wiki/SVG_Links What SVG library is used in Freemind?
I strongly suggest implementing this: a PDF can be read with any tool, and the map is a useful way to collect informations, like a graphical TOC. Any news?
FreeMind is very useful for making indexes, and a PDF can be store into SharePoint server as first page, or distributed via email, and wil containg all the links the repicient needs to work.
Add field "project" to any record