Tools for KDP coloring books

Audience-first planning, bulk generation, 300 DPI 1-bit output, print-ready PDF — one workflow, not a drawer of tools.

• 300 DPI coloring pages, every time

  Every CrayonMill page is 2550 × 3300 pixels — 300 DPI on 8.5 × 11 in — and 1-bit. No upscaling, no gray, no resolution upsell.

• Adult coloring book generator (fine lines, dense pattern)

  Botanical, mandala-free niches, cozy scenes: Adults defaults to Fine, Cozy to Medium (both overridable), 300 DPI 1-bit, print-ready.

• AI coloring book generator for KDP

  Pick an audience and a theme. CrayonMill plans the topics, draws every page at 300 DPI 1-bit, and exports a print-ready PDF with the right gutter.

• Bulk coloring page generator for KDP books

  Generate 24–300 art pages in one run (up to 150 single-sided). Topics are planned from an audience and a theme, drawn in one style, cleaned to 1-bit.

• Coloring book topic planner

  Stop writing 40 prompts. Give the planner an audience and a theme; it returns distinct, age-appropriate topics with no repeats and no negatives.

• Coloring page line thickness by age

  Line detail is a separate control — Extra bold, Bold, Medium, Fine — not fixed by audience. Each audience suggests a default you can override.

• Print-ready coloring book PDF for KDP

  The PDF is built for you: gutter by page count, blank backs for single-sided, 300 DPI 1-bit pages, and a print check that refuses anything KDP would.

• Toddler coloring book generator (extra bold lines)

  One big object, plain background, Extra bold lines by default — a 2–4 year old's default, not a locked setting. Planned topics, 300 DPI, print-ready PDF.