Hi
Well, the encephalogram is pretty flat.
I tried just one more thing using the
convertio site. I converted an 9×12 odt book to djvu. After some few minutes, I was able to download a 2.4 MB 9×12 djvu.
The original odt file has a size of 353 k. The 9×12 pdf produced with LibreOffice is a 1.6MB 9×12 file. So the resulting djvu file is way bigger than the pdf.
Furthermore, while the pdf is a very exact copy of the odt, the djvu has some defects for the display of some titles, small caps, etc.
So, unless some new information comes in, I think it's about time to give up my idea.