>
>
>> If I understand well, pstopdf uses ghostscript .
>> "luafication" will use ghostscript again ?
>>
>
> sure, what else ... actually, pstopdf started out as some perl script long
> ago (when we started using pdftex) and we needed it not only in order to
> convert to pdf, but also to clean up some mess in eps files that interfered
> with the process
>

So what about a lua wrapper of libgs.so libgs.dll ?
code should be not complicated
http://wiki.contextgarden.net/User:Luigi.scarso/luatex_lunatic#Ghostscript

-- 
luigi