I do course guides and question sets to support teaching in LibreOffice Writer (at home) and OpenOffice (at work). In the 60 page range, with lots of formulas, diagrams (drawn with drawing tools) and some bitmap images (scans of hand drawn graphs). I also copy in charts and graphs and more complex drawings from Calc/Impress as needed. No complex 'section' schemes or restyling though just writing straight through.

The size in Mb varies according to the number of scans - the drawings and diagrams themselves take little file space. A 100 page course guide comes in around 2Mb as an .odt with half a dozen scanned plots.

Seems sprightly enough on a core-duo laptop with 2Gb ram and KDE at home and the usual 'office PC' at work.

Interesting. Thanks for the info. Don't know a lot about the sizes of word processing docs, but slightly surprised that a 100 page doc would come in at as little as 2 MB. I would have thought it should be more. Maybe it is due to ODT format being compressed text/XML, which I think I read somewhere - need to look up the format spec.