Recently, Amazon changed royalty calculations for books available through Kindle Unlimited (and Kindle Lending Library) to be based on number of pages read. These calculations are determined using a normalized page count, or KENPC, that is intended to be independent of how the book is formatted.
We’ve received feedback, however, that eBooks created with Vellum sometimes reported a lower KENPC than eBooks created through other means. In response, we’ve released Vellum 1.2.5, which adjusts output to no longer produce these lower KENPC numbers.
If you have a book you’d like to update, simply open it with this newest version of Vellum and re-generate. No other changes are necessary.
Vellum 1.2.5 is available now for Direct users, and has been submitted to the Mac App Store for approval. You can learn more about updating from our Tips Page.
Update 7/31: See also More Details About Vellum and KENPC.
Update 8/4: Vellum 1.2.5 is now available from the Mac App Store as well.