Plykit for Amazon KDP
A coloring book is thirty to fifty pages that have to look like they belong to the same book, plus a cover whose spine width changes the moment your page count does. These are the tools for that job.
Tools
Lock one character, generate every interior page against it, and export a 300 DPI print-ready PDF with the KDP gutter applied.
Upload the cover template Amazon generated for your book and the real trim, spine and bleed are read off the file — including its actual 600 DPI.
Work out full-wrap dimensions and spine width from page count and paper type. Free, no account needed.
Sample books
Made with the studio above. Each one lists what it actually cost in credits and how long it took.
The classic test for any coloring book maker: a cute animal character that has to look identical on every page. The paw-print bandana is the anchor detail — watch it survive all 10 scenes.
Adult coloring is the biggest KDP coloring niche. Mandala books are pattern books — no character to keep consistent, so every page is a standalone prompt. Style stays coherent because every prompt shares the same line-art hardening.
Seasonal niches spike hard on KDP — Halloween searches start climbing in August. A consistent mascot character across seasonal scenes is exactly what used to require an illustrator.
Guides
Trim sizes, bleed, gutter margins, the 79-page spine text rule, and what KDP actually rejects — step by step.
Compared with other KDP tools
Every competitor detail in these is checked against their own site, and anything their site does not state is marked as not stated rather than guessed at.
Both tools keep the same character across every page of a coloring book. The difference is the print side: trim sizes, DPI, bleed, gutter and spine handling. Competitor details verified against coloringbook.ai on 2026-09-20.
A spec-by-spec comparison for Amazon KDP coloring books: trim sizes, 300 DPI, bleed, gutter, character consistency across pages, and what each plan costs. Competitor details verified against kdpcoloringbook.com on 2026-09-20.
Character consistency versus style fingerprint, trim sizes, 300 DPI, bleed, gutter, free tiers and real monthly cost. Competitor details verified against bookillustrationai.com on 2026-09-20; figures their own pages contradict are left out.
A spec-by-spec comparison of Plykit and KDP Easy for Amazon KDP: full-wrap covers, spine width, trim sizes, 300 DPI interiors, character consistency across pages, and pricing. Competitor details verified against kdpeasy.com.
Start with the free calculator
No account needed. Enter your page count and paper type and get the exact full-wrap cover dimensions Amazon expects.
Open the cover calculator