Japanese and E-book readers: A guide

This is what I do for e-readers that can deal with Japanese text, specifically the paperwhite.

1. Acquire a 青空文庫 format book (legal, of course)
2. Stick it into AozoraEpub3 to acquire .epub file
http://www18.atwiki.jp/hmdev/pages/21.html
3. Stick that file into Kindle Previewer to get a .mobi file
http://www.amazon.com/gp/feature.html?ie...1000765261
4. Enjoy a file with embedded images (if there are any), dictionary look-ups, vertical text, and ruby/furigana in tact.

Details are here
http://ebookyaro.blogspot.jp/2012/10/ki … epub3.html

And if you're using an older kindle that works better with pdf, this is probably better.