What size is an 8.5 x 11 KDP interior with bleed?
Short answer: For an 8.5 x 11 inch KDP paperback interior using bleed, the commonly used full-page file size is 8.625 x 11.25 inches. At 300 DPI, that is 2588 x 3375 pixels. Always verify current KDP requirements and preview the final PDF.
Why this causes KDP problems
Many coloring book pages are created at 2550 x 3300 pixels, which is 8.5 x 11 inches at 300 DPI before bleed. If the book is set to bleed in KDP, the PDF needs the larger bleed page size so artwork can extend past the trim edge.
Recommended workflow
- Choose 8.5 x 11 in KDP.
- Decide whether the interior uses bleed.
- For bleed, prepare the larger page size.
- Extend full-page art to the bleed edge.
- Keep important content inside safe margins.
- Review the final file in KDP Previewer.
Where Book Interior Kit fits
Book Interior Kit calculates 300 DPI output from the selected trim size and bleed mode, then places each image on a consistent page canvas before PDF preview and export.
What to check before publishing
- The KDP setup uses the same trim size and bleed setting as the generated PDF.
- Artwork intended to bleed reaches the full page edge.
- The final PDF page size is consistent across all pages.
- The final PDF is reviewed in KDP Previewer.
Book Interior Kit is independent software, is not affiliated with Amazon or KDP, and does not guarantee KDP approval.