Originally Posted by kovidgoyal
No, it's a limitation of the MOBI format. You can only get left margins in increments of 2em on the Kindle with MOBI.
Tech idoit here, if that's the case why aren't all of them like that? I'd say 95% of my books are fine on my Kindle screen.
Also I had the same problem when I converted a book to ePub for my Kobo.
Note: Not a complaint, I love your software, just curious.