Coloring pages generator: printable line art on any theme
A rainy afternoon, a dinosaur-obsessed six-year-old, or an adult who wants calm mandala pages: each needs different line art. This prompt has your todo.is agent draw clean black-and-white pages for the age you choose, with thick or fine lines to match, and put them together in a printable PDF booklet.
The prompt
- Make [NUMBER] coloring pages about [THEME] for [AGE OR LEVEL]. Style: [STYLE]. Clean black line art on pure white, no grey shading, no filled black areas, closed shapes so colouring stays inside the lines. Line thickness to suit the age (thick and simple for young kids, fine and detailed for adults). Keep a 1.5 cm margin for printing. If I ask for a name or words, add them as real outlined letters with exact spelling: [TEXT ON PAGES]. Deliver each page as a 300 DPI PNG and all of them in one [PAPER SIZE] PDF booklet with a simple cover page.
What to change
- [NUMBER]: E.g. "8" for a small booklet.
- [THEME]: E.g. "dinosaurs at the beach", "ocean animals", "Christmas village", "botanical mandalas".
- [AGE OR LEVEL]: E.g. "ages 3 to 5", "ages 6 to 9", "adults, very detailed".
- [STYLE]: E.g. "cute cartoon", "realistic", "zentangle patterns", "kawaii".
- [TEXT ON PAGES]: E.g. "Mia's Dino Book" on the cover, letters A to H for an alphabet book, or "no text".
- [PAPER SIZE]: "US letter" or "A4".
Example result
- Coloring book: dinosaurs at the beach
- 8 pages · ages 3 to 5 · cute cartoon · thick lines · US letter · cover reads "Mia's Dino Book"
- The pages
- • Cover: "Mia's Dino Book" in big bubble letters with a smiling T. rex holding a bucket
- • 1. Sandcastle builder: a T. rex building a sandcastle with a tiny spade
- • 2. Surf's up: a stegosaurus on a surfboard riding one big wave
- • 3. Ice cream time: a triceratops licking a two-scoop ice cream cone
- • 4. Shell hunt: a baby brontosaurus with three big shells and a crab
- • 5. Beach umbrella: a pterodactyl napping under a striped umbrella
- • 6. Splash: two little dinosaurs jumping over a wave
- • 7. Sunset: a big sun, a palm tree and a dinosaur waving goodbye
- • 8. Draw your own: an empty beach with a speech bubble: "Draw your dinosaur here!"
- Made for little hands
- • Lines about 4 px at 300 DPI (roughly 1 mm thick) so crayons stay in the lines
- • Big shapes, no tiny details; every shape closed for clean colouring
- • No grey shading or black fills, which waste ink and confuse young kids
- • 1.5 cm margins so nothing gets cut off on home printers
- For other ages the agent changes
- • Ages 6 to 9: more detail, simple backgrounds, a fun fact under each picture
- • Adults: fine 1 to 2 px lines, dense patterns, mandalas and botanicals, full-page designs
- Files delivered
- • mia_dino_coloring_book.pdf: cover plus 8 pages, US letter
- • page_01.png to page_08.png: single pages at 300 DPI
- Printing tips
- • Print in black and white on plain 80 to 100 gsm paper, or card stock for markers
- • Use "actual size", not "fit to page", so lines stay crisp
How to do it with todo.is
- Copy the prompt and fill in the number of pages, theme, age, style, any text and paper size.
- Paste it into todo.is or message it to your agent on WhatsApp or Telegram.
- Download the PDF booklet and print it at home.
- Ask for a new themed booklet anytime, or set a weekly to-do: "every Friday, make 5 new coloring pages about a new animal".
Tips for a better result
- Match line thickness to the age. Thin, detailed lines frustrate young kids; thick simple lines bore adults.
- Ask for a "draw your own" page at the end. Kids love finishing a scene themselves.
- Turn a family photo into a coloring page: attach it and ask for simple line art of the people and the pet.
- If you plan to sell coloring books, check the image model's terms and your marketplace's rules on AI content.
coloring pages generator: FAQ
- Can I print these coloring pages at home? Yes. The PDF is set up for US letter or A4. Print in black and white at actual size; thicker paper works better for markers.
- Can I make coloring pages from my own photo? Yes. Attach the photo and your agent turns it into simple line art. Clear, uncluttered photos give the best result.
- Are there coloring pages for adults? Yes. Ask for adults and a detailed style, such as mandalas, botanical patterns or city scenes, and your agent uses fine lines and dense detail.
- Can I sell AI coloring books? Many people do, but check the image model's terms and your marketplace's policy on AI-generated content, and only use themes and characters you own.
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