I use a Sony PRS-650 and I often create PDF files for it with LibreOffice. These are usually documents which I read only once and I don't care about portability. (I don't read them on other devices and I'm able to change the page size if I need to.)
What page size should I set in LibreOffice to see exactly the same layout (and avoid resizing of the pages) on my PC and PRS-650? (Please note that there is a status line at the bottom of the screen on PRS-650 with battery charging indicator etc.)