+For building the PDF version, you need a reasonably recent installation
+of TeX Live. Release 2014 will do. You will also need the Emerald
+package from https://www.ctan.org/tex-archive/fonts/emerald/. This
+cannot be installed with tlmgr, nor does it seem to be packaged by the
+usual Linux or BSD distributions. Scripts for installing and
+uninstalling Emerald are provided here. When you're ready, type this:
+
+ make latexpdf
+