[tlug] Generating Furigana in documents

[Christian Horn <chorn@example.com>]

Hi all,

I am wondering if there is a convenient way on linux
to take i.e. utf8 documents with Kanji as input and 
get an output document with Furigana.
pdf output would also be nice.

There are websites to accomplish this, but I found them
unreliable and limited in the lenght of input they
accept.
There are also plugins for older openoffice versions, but
I did not see anything for the Libreoffice which I use
nowadays.

Any ideas?

Thanks,
Christian