|
Epub doesn't really have a concept of "pages", so "every 5 pages" is more or less meaningless. Do your PDF articles have any headings or other natural locations where you could break? If so, you can play with the chapter break xpath in the structure detection options.
Calibre breaks epub files every 260KB if it doesn't find any better chapter breaks. You could adjust that configuration value down to something small like every 10KB.
|