KDP error: Barcode / ISBN placement on the cover
Last reviewed by Robert Prime — June 2026 Quick Answer: KDP automatically places an ISBN barcode in a 2" × 1.2" (50.8 × 30.5 mm) …
KDP Formatting
Categories archive — 159 articles
KDP error: PDF won't upload or convert correctly
Last reviewed by Robert Prime — June 2026 Quick Answer: KDP rejects a PDF at upload for a handful of fixable reasons. The big one is fonts …
KDP page-count rules: minimum, maximum, and even pages
Last reviewed by Robert Prime — June 2026 Quick Answer: A KDP paperback must be 24 pages or more. The maximum depends on ink and paper: 828 …
Amazon KDP Technical Setup: Fix Common Errors
Last reviewed by Robert Prime — May 2026 KDP looks simple until you're inside it. The dashboard is clean, the upload steps seem logical — …
Spine width for a 100-page 5.06×7.81 inch KDP paperback
Last reviewed by Robert Prime — May 2026 Quick answer: For a 100-page paperback at 5.06" × 7.81", the spine width is 0.225" …
Spine width for a 100-page 5.25×8 inch KDP paperback
Last reviewed by Robert Prime — May 2026 Quick answer: For a 100-page paperback at 5.25" × 8", the spine width is 0.225" …
Spine width for a 100-page 5.5×8.5 inch KDP paperback
Last reviewed by Robert Prime — May 2026 Quick answer: For a 100-page paperback at 5.5" × 8.5", the spine width is 0.225" …
Spine width for a 100-page 5×8 inch KDP paperback
Last reviewed by Robert Prime — May 2026 Quick answer: For a 100-page paperback at 5" × 8", the spine width is 0.225" (5.72 …
Spine width for a 100-page 6.14×9.21 inch KDP paperback
Last reviewed by Robert Prime — May 2026 Quick answer: For a 100-page paperback at 6.14" × 9.21", the spine width is 0.225" …
Spine width for a 100-page 6.69×9.61 inch KDP paperback
Last reviewed by Robert Prime — May 2026 Quick answer: For a 100-page paperback at 6.69" × 9.61", the spine width is 0.225" …
Spine width for a 100-page 6×9 inch KDP paperback
Last reviewed by Robert Prime — May 2026 Quick answer: For a 100-page paperback at 6" × 9", the spine width is 0.225" (5.72 …
Spine width for a 100-page 7.5×9.25 inch KDP paperback
Last reviewed by Robert Prime — May 2026 Quick answer: For a 100-page paperback at 7.5" × 9.25", the spine width is 0.225" …