This document is incomplete.
I think the document is on my desk at home.
"When do you want Tofugu’s secret documents?" "The sooner, the better."
If you put writing into a category, you'd have to write it down after you've chosen what category it is in. Where would you write that down? Into a document, probably.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.