5 x 8 in KDP margins by page count
A 5 x 8 in paperback needs an inside margin from 0.375 in (up to 150 pages) to 0.875 in (up to 828 pages), and at least 0.25 in on the other three sides.
| Page count | Inside margin | Largest text area, no bleed | Largest text area, with bleed |
|---|---|---|---|
| 24 to 150 | 0.375 in | 4.375 x 7.5 in | 4.25 x 7.25 in |
| 151 to 300 | 0.5 in | 4.25 x 7.5 in | 4.125 x 7.25 in |
| 301 to 500 | 0.625 in | 4.125 x 7.5 in | 4 x 7.25 in |
| 501 to 700 | 0.75 in | 4 x 7.5 in | 3.875 x 7.25 in |
| 701 to 828 | 0.875 in | 3.875 x 7.5 in | 3.75 x 7.25 in |
Source: KDP help, Set Trim Size, Bleed, and Margins. Read on 10 November 2026.
The text area is what is left of the 5 x 8 in page after the minimum margins: the inside margin on the spine side and 0.25 in (0.375 in with bleed) on the top, bottom and outside. It is calculated here from the published minimums. Wider margins are allowed and usually read better.
| No bleed | With bleed | |
|---|---|---|
| PDF page size | 5 x 8 in | 5.125 x 8.25 in |
| Top, bottom, outside minimum | 0.25 in | 0.375 in |
| Most pages, black ink on white paper | 828 | 828 |