Spine width and cover wrap calculator
Enter the trim size, page count and paper stock and this draws the cover Amazon expects, with every dimension you need to set up the file.
Back panel, spine, front, bleed and the barcode area, at 300 DPI, with nothing straying inside Amazon's safe margin. If you would rather not do that by hand: upload your artwork and your interior PDF and we build all of it, plus the Kindle cover, for $39. We read the page count off your interior, so the spine matches the book that actually prints.
See how it works · No artwork yet? Start here
Which is why so many covers come back rejected: the cover was made against an estimate, the finished book ran fourteen pages longer, and the spine was wrong by a hair. We are building a service that formats the manuscript and draws the cover in one pass, so the spine is measured rather than guessed. Leave an email and we will tell you when it opens.