Publishing both hardcover and paperback editions doubles your potential revenue鈥攂ut the covers aren't identical. Different trim sizes, spine calculations, and cover materials mean design adjustments are essential. This guide breaks down every technical difference so your covers pass KDP's review on the first try.
馃搻 Quick Spec Comparison
- Paperback trim sizes: 16 options (5脳8" to 8.5脳11")
- Hardcover trim sizes: 5 options (5.5脳8.5" to 8.5脳11")
- Hardcover spines: Consistently 0.19" (4.8 mm) wider than paperback
- Minimum pages with spine text: 80 for both formats
Trim Size Differences
KDP offers 16 paperback trim sizes but only 5 hardcover sizes. If you want to offer both formats, choose a size available in both.
Once your specs are locked in, the visual side becomes the differentiator. Browsing curated print collections like Framearto can help you spot how scale, framing, and color hold up differently between a small paperback and a larger hardcover, which is a useful gut check before committing artwork to two formats.
One Design, Two Perfect Covers
KDPEasy automatically generates both paperback and hardcover versions from a single design. Correct specs guaranteed.
Create Both Formats Now
ABOUT THE AUTHOR
Danielle Okonkwo
Marketing & Growth Lead at KDPEasy. Danielle is a published author with 12+ titles on Amazon KDP and a former book blogger. She draws on hands-on publishing experience and years of testing what works in the KDP marketplace.
Meet Danielle
