JGloss supports the popular EDICT2 dictionary file format. Available dictionaries include the Japanese-English EDICT itself, the Japanese-German Wadoku Jiten, and many others. The Kanjidic dictionary format is also supported.
Have a look a the screenshots to see JGloss in action. This PDF document is generated from a LaTeX file generated by JGloss. Documents can also be exported as HTML. You can also save a vocabulary list as plain text.
JGloss is free and open source software, distributed under the terms of the GNU General Public License. You can get the source code, modify it to your liking and contribute your enhancements if you want.