No bleed for the common case: line art that stays fully inside the safe margin, with white space between the drawing and the trim edge. Bleed — art extended 0.125 in past the trim line — is only needed if art is meant to touch or run past the trimmed edge of the page, and choosing it changes the trim size built into every page of the file and raises the outer safe margin from 0.25 in to 0.375 in, not just on the pages where art actually reaches the edge.
What bleed is
Bleed is extra artwork extending past where the page will actually be cut, so that small shifts in trimming during printing never leave a thin white sliver at the edge instead of ink. KDP requires 0.125 in of bleed on every edge of a page that uses it. Bleed is set for the whole interior file at once — every page in the PDF is built to the bleed trim size, whether or not that specific page's art reaches the edge.
| Setting | What it changes | Right for |
|---|---|---|
| No bleed | Art stays inside the safe margin; page built at exact trim size | Standard coloring pages — line art with white space around it |
| Bleed | Page built 0.125 in larger on every edge that bleeds; art can run to the trim line | Art meant to touch the page edge (full-bleed illustration, edge-to-edge pattern) |
Why most coloring books use no bleed
A coloring page is line art the colorer works inside of — it doesn't gain anything from touching the physical edge of the paper, and there's a practical cost to letting it try: the outer safe margin required for bleed pages is larger than for no-bleed pages (0.375 in vs. 0.25 in minimum), because bleed pages have less real safety distance from an edge that shifts slightly during trimming. Choosing bleed for art that was never going to reach the edge just shrinks the safe drawing area for no benefit.
When bleed is worth it
Bleed matters when a design element — a background pattern, a full-page illustrated border, an edge-to-edge scene — is meant to visually continue to the physical edge of the page. For pure line-art coloring pages (the large majority of coloring books), that's rare; most published books, including kids' and adult titles across styles, keep line art inside the safe margin and skip bleed entirely.
Getting this wrong
Choosing bleed without art that actually reaches the edge doesn't cause a rejection by itself, but it does shrink the working page — a larger required outer margin, on a page where nothing was going to use the extra space anyway. Choosing no bleed while art is drawn to touch the edge is the more visible mistake: after trimming, that art can show a thin unintended white line where the design meant to run flush, since a no-bleed file has no extra margin to absorb trimming variance.
Sources
Last verified 2026-09-04. Updated 2026-09-04.