Color by Number Generator for KDP
Turn any image or a built-in design into a printable color-by-number coloring page. Each region gets a number keyed to a colour, with a matching answer key — export the whole book as a print-ready PDF for Amazon KDP.
Free account · plans from $9/mo · cancel anytime
Color by number generator
Any image becomes a puzzle
Upload a picture, use one of your AI images, or pick a built-in mandala or geometric design.
Numbered regions + colour key
We trace clean outlines, number each region, and build a colour legend automatically.
Print-ready PDFs
Every export pairs the numbered page with a coloured answer key, sized for KDP.
How it works
- 1
Choose your artwork: upload an image, pick an AI image, or a built-in design.
- 2
Tune the number of colours, detail, and smoothness until it reads cleanly.
- 3
Preview the page and answer key, then download the print-ready PDF.
Frequently asked questions
Can I sell the color-by-number books I create?
Yes. Everything you generate and export is yours to publish and sell on Amazon KDP or any other platform.
What kinds of images work best?
Bold, simple images with flat colours convert most cleanly. AI illustrations and the built-in designs are the most reliable; busy photos may need fewer colours and lower detail.
Does the PDF include the answers?
Each puzzle can include a coloured answer-key page plus a numbered colour legend, so colourists always know which colour goes where.
Do I need an account to use the generator?
You can browse this page without an account, but generating and exporting requires signing in and credits.
Ready to build your puzzle book?
Sign in to generate print-ready interiors and export them as a PDF in minutes.
Free account · plans from $9/mo · cancel anytime