What makes a good coloring page
A coloring page is pure black lineart on white, with fully closed shapes so colors stay inside, a consistent, fairly bold line that's easy to color within, and an appropriate level of detail for the audience (chunky for kids, intricate for adults). No shading, no grey — just clean outlines.
1. Set up the canvas
For print, use a canvas at the target paper size (e.g. 8.5 × 11 in for US Letter / KDP) at 300 DPI, with a white background. Keep important art inside a safe margin so nothing is lost to trimming. Add a layer for your sketch and one for ink.
2. Sketch the design
Block your subject simply with clear, separable shapes — a scene, animal, mandala or pattern. Avoid tiny enclosed areas that are impossible to color. Lower the sketch opacity before inking. For decorative pages, mandalas and pattern fills work beautifully.
3. Ink with clean, closed lines
Ink on a new layer with a crisp liner from the inking category, keeping the line weight even and bold enough to color inside. Most importantly, close every shape — no gaps — so colors won't leak when someone fills them (digitally or on paper). Use QuickShape and QuickLine for clean geometry. See the full inking workflow and tips for clean lineart.
4. Keep line weight consistent
Coloring pages usually want a uniform line weight, not the dramatic variation of comic inking — it reads as clean and approachable, and frames every area evenly. A technical liner at a fixed size is ideal.
5. Check it's truly black and white
Delete the sketch layer, hide the background, and confirm the lineart is pure black with no stray grey or anti-aliasing problems. Flatten onto white. For KDP, files are typically black-and-white at 300 DPI.
6. Export print-ready files
Export a PNG or PDF at 300 DPI. For a KDP coloring book, follow Amazon's interior specs (page size, bleed/no-bleed, margins) and assemble pages into the required PDF. For single sellable pages, a high-resolution PNG works for Etsy and instant downloads.
7. Make a set
Coloring books sell as collections, not singles. Keep a consistent style and line weight across pages, reuse stamp brushes for repeating motifs and borders, and build a themed set (animals, florals, mandalas) for a cohesive book.
Brushes and next steps
You only need a clean free liner from the inking category or any free brushset — see the best free inking brushes. Want to test-color your own page? See how to color lineart in Procreate.