KDP and IngramSpark Print Validation Tools
Use focused tools for cover dimensions, spine width, bleed, gutter margins, and final upload checks.
KDP Cover Calculator
Calculate cover size, spine width, page count, trim size, and paper type before uploading to KDP.
Spine Width Calculator
Calculate paperback spine width for KDP and IngramSpark based on page count and paper type.
Bleed Calculator
Check bleed, trim, and safe area dimensions for paperback covers and interiors.
Gutter Calculator
Estimate inside margins and gutter size for paperback interiors.
Cover Dimensions Calculator
Calculate full paperback cover spread dimensions.
Pre-Upload Checklist
Run through a practical print PDF checklist before uploading to KDP or IngramSpark.