If you are a self-published author working on novels, novellas, and short story collections and your manuscript is currently in DOCX format, this guide will walk you through everything you need to know about converting it to a professional KDP Print PDF at the 6" x 9" (152 x 229 mm) trim size.
Why 6" x 9" for Fiction?
The 6" x 9" trim size is the industry standard for novels, novellas, and short story collections. It provides a comfortable reading experience while keeping printing costs manageable. At this size, a typical 60,000-word fiction manuscript runs to a few hundred pages, though the exact count depends on your font, type size, and layout.
Converting DOCX to KDP Print PDF
Your DOCX file from Microsoft Word documents needs to be converted to a format that Amazon KDP paperback interior PDF can accept.
Key Requirements for KDP Print PDF
Amazon KDP requires a print-ready PDF with all fonts embedded and specific margin requirements that vary based on your final page count.
Margin Requirements at 6" x 9"
For a 6" x 9" book, the minimum margins are:
| Margin | Minimum | Recommended |
|---|---|---|
| Top | 0.25" (6.4 mm) | 0.5" (12.7 mm) |
| Bottom | 0.25" (6.4 mm) | 0.5" (12.7 mm) |
| Outside | 0.25" (6.4 mm) | 0.5" (12.7 mm) |
| Gutter (inside) | Varies by page count | See KDP gutter table |
Common Formatting Challenges for Fiction
Fiction typically requires clean chapter headings, consistent paragraph indentation (a 0.3 inch first-line indent is common), and proper handling of scene breaks. Avoid using multiple blank lines for scene breaks; use a centred ornamental break (three asterisks or a decorative glyph) instead.
The Automated Alternative
Manually converting a DOCX file to a KDP Print PDF-ready format at 6" x 9" can take hours of trial and error. At publishing.co.uk, our automated formatting engine handles the entire process within 24 hours.
Simply upload your DOCX file, select 6x9 as your trim size, and receive a professionally formatted KDP Print PDF file built to meet KDP’s current file specifications.
From £69. Unlimited revisions. Formatted to KDP’s current specifications.