Production-first workflow for KDP uploads. Includes official print specs, common pitfalls, recommended tools, and checklist paths.
See Official Print Specifications →Confirm trim size, final page count, paper type, and bleed requirement before cover math.
Compute spine width and full-wrap dimensions using final interior inputs.
Check margin and gutter safety to prevent binding risk drift.
Export interior and cover from final sources with no hidden scaling.
Use a checklist to catch mismatch risks before upload.
Upload once, review warnings carefully, re-export only if confirmed.
Trim, bleed, spine, and full-wrap must be regenerated from the same final page count.
A page-count change without recalculation misaligns title and barcode zones.
Backgrounds must extend through bleed while critical text stays inside safe areas.
Wrong page size or hidden scaling often triggers avoidable rejection loops.
Build a stable workflow from requirements to execution before checking problem-level diagnostics.
You may also want to compare printing requirements between platforms.
KDP vs IngramSpark Print SpecificationsIf content extends to the edges of the page (images/background fill), KDP requires a 0.125 in (3.2 mm) bleed on all sides. This means your PDF target page size must include extra bleed dimensions beyond your trim size.
In practice, extend only what needs bleed (images, color blocks) and ensure other content lies within safe margin boundaries.
KDP specifies minimum margins depending on your bleed choice: • Without bleed: outside, top and bottom ≥ 0.25 in (6.4 mm). • With bleed: outside, top and bottom ≥ 0.375 in (9.5 mm). For interior text and images near binding, also consider increased inner gutters for readability.
Full wrap width formula:Full Width = 2 × Trim Width + Spine Width + 2 × Bleed Full Height = Trim Height + 2 × BleedSpine width itself depends on paper type and page count.
Start with a structured self-check before upload.