There is nothing popular and free though. I built a simple one myself some time ago: https://bitbucket.org/qznc/vorflug https://bitbucket.org/qznc/vorflug The

There is nothing popular and free though. I built a simple one myself some time ago: https://bitbucket.org/qznc/vorflug https://bitbucket.org/qznc/vorflug The font check alone can be done in a few lines of Python: http://beza1e1.tuxen.de/articles/preflight.html http://beza1e1.tuxen.de/articles/preflight.html