KDP cheat-sheet · 한국어
KDP coloring book trim, bleed & margin calculator
Pick your trim and page count. Get the exact interior PDF size, safe margins, and binding gutter — for both no-bleed and full-bleed. No sign-up.
No-bleed art inside white margins
PDF page size —
Outer safe margin —
Inside / gutter margin —
Full-bleed art runs off the edge
PDF page size —
Bleed added +0.125″ W · +0.25″ H
Inside / gutter margin —
The gutter margin grows with page count
The inside (binding) margin is the number most people miss on longer books. KDP's minimum:
| Page count | Minimum gutter |
|---|---|
| 24–150 | 0.375 in |
| 151–300 | 0.5 in |
| 301–500 | 0.625 in |
| 501–700 | 0.75 in |
| 701–828 | 0.875 in |
Numbers here follow Amazon KDP's published paperback margin and bleed specifications. Always confirm against KDP's Print Previewer before you publish — this is a planning aid, not official Amazon documentation.
Skip the math — let the tool apply it
Prepressly fits every page to your trim with the right gutter for your page count, at 300 DPI, no-bleed or full-bleed, and exports one upload-ready PDF. Free, in your browser.
Open Prepressly — free