The Rttf2p1 package for R is meant to be used with the extrafont package.
This package contains the utility program
ttf2pt1, and is in its own package for licensing reasons.
It will be compiled on installation, so you need a build environment on your system.
This product includes software developed by the TTF2PT1 Project and its contributors.
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.