Manuscript formatting guides

Practical formatting for print and ebook editions, from choosing a trim size to exporting a PDF that passes KDP's review.

Manuscript Formatting

Book Trim Size: How to Choose Before You Format

Choose your book trim size with confidence: KDP's page count limits by ink and paper, the large trim cost boundary, and what locks after you publish.

September 25, 2026

Book Cover Design

Use the KDP spine width calculator formula to get your paperback spine, full cover size and bleed right, and learn when KDP allows text on the spine.

September 23, 2026

Amazon KDP

KDP paperback royalty calculation, explained: the 50% and 60% price thresholds, printing costs by page count and trim, and royalties at real prices.

September 14, 2026