What to check
1. Hinge zones sit between the spine and boards and should not contain essential lettering or faces
Hinge zones sit between the spine and boards and should not contain essential lettering or faces.
2. Artwork must continue through the outer wrap area even though that area is not visible from the front
Artwork must continue through the outer wrap area even though that area is not visible from the front.
3. A dust jacket adds flaps and follows a different template from a case-laminate cover
A dust jacket adds flaps and follows a different template from a case-laminate cover.
Use the final production inputs
Calculate from the final formatted page count, not the manuscript estimate. Select the exact trim, binding, interior type, and paper stock before creating the cover sheet. If any of those values change, regenerate the dimensions and compare the exported PDF against the printer's current template.
Artwork, type, spine, and back-cover copy remain editable when the print setup changes.
Sources: Amazon KDP hardcover cover requirements. Recheck the current printer template before export.