KDP formatting means preparing your manuscript so Kindle displays it correctly and paperback files print with the right trim, margins, and bleed. If you treat eBook and print as separate outputs from the start, you avoid most upload errors.
Step-by-step formatting workflow
- Choose your output types: decide if you will ship Kindle only, print only, or both.
- Build semantic structure: apply heading styles for chapter titles and subheads before visual styling.
- Set paragraph rules once: use paragraph settings (not tabs or repeated spaces) for indents and spacing.
- Insert real page breaks: each chapter should start with an actual page break.
- Prepare images: use high-quality JPG/PNG assets and keep print images at 300 PPI.
- Create a linked TOC: ensure table-of-contents links resolve correctly in preview.
- Export and validate: preview in Kindle and print contexts before publishing.
eBook formatting essentials
- Prefer clean DOCX or EPUB sources.
- Use heading styles for automatic TOC generation.
- Avoid fixed-width layout tricks that break on smaller devices.
- Keep front matter clear and concise.
Paperback formatting essentials
- Select trim size before final layout.
- Configure outer margins and gutter according to page count.
- Choose bleed only when graphics run to the page edge. With bleed, set the PDF page size to trim plus 0.125" on the width and 0.25" on the height (a 6" × 9" trim becomes 6.125" × 9.25").
- Embed fonts and export a print-ready PDF at those final dimensions.
Common rejection patterns
| Issue | Why it fails | Fast fix |
|---|---|---|
| Missing gutter room | Inner text collides with spine | Increase gutter and re-export PDF |
| Low-resolution interior images | Print quality degrades visibly | Replace assets with 300 PPI originals |
| Broken TOC links | Navigation fails in Kindle | Rebuild TOC from heading styles |
FAQ
Can I upload one PDF for both Kindle and print?
For most projects, no. Kindle reads best from reflowable sources, while print needs fixed-size output.
What should I validate before final upload?
Check heading structure, TOC links, image quality, margin/gutter, and final trim-size dimensions.
Bottom line
A repeatable formatting checklist removes guesswork and cuts rejection cycles. Start structured, preview early, and keep eBook and print outputs separate.