I've just realised that I'm looking at this the wrong way, and probably need to change the default cover settings, rather than the values that I'm passing in at the CLI.
How do I use reference that metadata from Calibre with the 'ebook-convert' command?
At the moment I'm passing in the parameters on the command line. Are there built-in Calibre variable names that I can use with ebook-convert?
so instead of:
ebook-convert filename.html filename.epub --title "title"
I'd want to use:
ebook-convert filename.html filename.epub --title whatever title is in Word properties that Calibre has read in as metadata
Hope that makes sense