Editorial Policy

Who is responsible

Everything here is decided by Prasad Bhosale, who runs the site. There is no volunteer pool, no contributor network and no syndicated content: every sheet on this site was made for this site.

If something on a page is wrong, one person is accountable for it, and the corrections section below is how to reach them.

Two kinds of printable, made two different ways

It matters which one you are looking at, so this is stated plainly rather than blurred together.

Worksheets are drawn from code. The tracing sheets, letter and number formation pages, counting grids, matching puzzles and mazes are generated by programs kept in this project's source repository. A letter-tracing sheet is not a picture of a letter — it is a stroke path, drawn with single-stroke engraving fonts so that a dotted guide has one dot per pen stroke rather than two rows of dots outlining the letter's shape. That distinction is invisible on screen and obvious to a four year old holding a pencil, which is why the sheets are built this way rather than typeset.

Because they are generated from source, the source is the evidence: every one of these sheets can be rebuilt from scratch, and the program that draws it is the record of how it was designed.

Coloring pages start as machine-generated line art. The illustrations — the animals, vehicles, holiday scenes — are produced with an image model against a written brief, then processed and checked before they become a PDF. This is disclosed because it is true, and because a site that hides it is one bad week away from being caught hiding it.

What that does not mean is that a model's output goes straight onto the site.

What every drawing has to pass

Before a drawing becomes a printable page it goes through automated gates. A page that fails one is regenerated, and a page that fails repeatedly is parked for a person to look at rather than published.

• Resolution — at least 1024px on the short edge, output at 300dpi for A4.
• Clean background — at least 70% of the image must be near-white. A gray wash wastes ink and makes crayon look muddy.
• Ink coverage — between 3% and 35% dark pixels. Below that the page is empty; above it there is nothing left to color in.
• No shading — under 8% of pixels may sit in the mid-gray band. A shaded drawing is a picture, not a coloring page.
• Actually monochrome — the color spread across channels has to be negligible.
• No lettering — a text-detection pass rejects drawings with words baked into them, including signatures and stray captions.
• Clean edge — the outer margin must be white, and the drawing is cropped and re-padded to a consistent border.

Survivors are converted to grayscale, leveled, binarized with a threshold that keeps the anti-aliasing (so the printed line does not go ragged), cropped to the ink and padded back to a uniform margin.

None of that makes a drawing good. It makes it printable. Whether a sheet is worth a child's ten minutes is a judgement, and it is made by a person.

Characters we will not draw

The source keyword research this catalogue was built from contained 46 topics describing trademarked characters by paraphrase — a cheerful mouse with big round ears, a yellow square sponge, an ice princess with a braid, a mustached plumber. Every one of them is excluded.

They are excluded by an explicit, reviewed list of specific entries, not by keyword matching, so the decisions are auditable in both directions. The list carries notes on what is deliberately not excluded and why: two generic robots, a carrot-nosed snowman, a dalmatian (a dog breed — only the search term named a film), and the public-domain fairy tales, Red Riding Hood and the three pigs among them.

If a restricted sheet is ever generated, it is filed as a draft and never reaches the public site without a deliberate decision.

We would rather have a smaller catalogue than an infringing one. This is also why the site carries a copyright and DMCA page: if you believe something here copies your work, that is the fastest way to reach us, and it will be taken down while it is looked at.

How ages are decided

Every sheet carries an age range, and the range is set from the finished drawing rather than from the plan for it — a sheet that turned out fiddlier than intended should say so.

Age ranges on this site are honest rather than flattering. If a sheet suits three year olds it says three, not "3+", because a range that stretches upward forever tells a parent nothing. Where a sheet has fine internal detail — a rangoli pattern, a peacock's tail — the lower bound moves up.

They are still a judgement, and they are the thing most worth telling us about if you disagree. A sheet that frustrates your child is more likely to be rated wrong than your child is to be behind.

How the writing is checked

The page copy — what a sheet practices, how to use it, what to expect — is drafted against the finished drawing and then reviewed.

That review was not always good enough, and the honest version of this page says so. In September 2026 an audit of the live site found six category descriptions stating counts the catalogue did not have, one of which advertised forty-nine coloring pages above a grid of three; a paragraph break that had been published as the literal characters that encode it; and two descriptions written in British spelling on a site that uses American. All six are fixed.

What changed as a result is that the check is no longer a matter of remembering to look. An audit runs against the live database and compares what the copy claims against what the catalogue actually holds, alongside checks for generation artifacts, leaked drafting instructions, spelling that does not match the rest of the site, categories too thin to deserve a page, and sheets rated outside the ages this site is for. It fails loudly, and it runs before anyone is asked to review the site.

Corrections

If something here is wrong — a broken download, a sheet that does not print at the right size, a factual error in a guide, an age range that is plainly off, or artwork you believe copies your own — tell us at hello@printkoala.com or through the contact form.

What happens then:

• Anything unsafe or infringing comes down first and is discussed second. We do not leave a page up while we deliberate.
• Factual errors in guides are corrected in place, and where the correction changes the advice rather than fixing a typo, the article says what changed and when. Silently editing an article to make it look as though it never said the wrong thing is not a correction.
• Broken or mis-rated worksheets are fixed or withdrawn. A sheet withdrawn for quality is archived rather than deleted, so a link that used to work says the page is gone instead of pretending it never existed.
• You get a reply, including when the answer is that we think the page is right.

Advertising does not buy coverage

The site is free because it carries advertising. Advertisers have no input into what gets made, no preview of it, and no way to have anything removed. Nothing here is sponsored, affiliate-linked or paid for, and if that ever changes it will be labelled on the page it affects rather than disclosed once in a policy nobody reads.

Ads are kept off pages that exist as steps in a flow rather than as content — download screens, search results and error pages carry none.