[noud]

I used this library very often when writing a new paper. When the paper was a draft I would put coffee stains on the pages. In this way, I always knew if I was looking at a draft or the final version.

[tasuki]

Without this, wouldn't you know which version of your document you're looking at? What is the workflow leading to that?

[noud]

Well, of course, I could put a version number on top of each page... but hey, what's the fun about that?