some feature suggestions for further anki integration and to save on manual lookups:
parse the document in to sentences, words, kanji
find all the words in the currently displayed page
look them up in the vocab decks
if they're not in the decks highlight in the text and show them with the dictionary lookup on the side, with options to add as new cards
if they're in a deck but not active highlight differently in the text and show them with the card info on the side, with options to make due, unsuspend or tag
add the sentence to the vocab cards, and again as cloze delete
similar to above but for kanji
option to fail active card if you have to look up the meaning manually
parse the document in to sentences, words, kanji
find all the words in the currently displayed page
look them up in the vocab decks
if they're not in the decks highlight in the text and show them with the dictionary lookup on the side, with options to add as new cards
if they're in a deck but not active highlight differently in the text and show them with the card info on the side, with options to make due, unsuspend or tag
add the sentence to the vocab cards, and again as cloze delete
similar to above but for kanji
option to fail active card if you have to look up the meaning manually