A Deterministic Geometry Risk Estimator
Platform-specific geometry validation for KDP and IngramSpark submissions.
Not a Developer Debug Tool.
Platform
Trim Size
Platform Geometry Rules
Amazon KDP: baseline margin 0.25 in, baseline gutter 0.375 in. Estimated spine uses page count + paper type.
- PASS: Trim size is valid - 6 x 9 in
- PASS: Page count is valid - 220 pages
- PASS: Margin meets platform baseline - Current 0.3 in | Recommended >= 0.25 in
- PASS: Gutter meets dynamic recommendation - Current 0.5 in | Recommended >= 0.474 in
- PASS: Paper type participates in spine estimate - Estimated spine 0.4954 in (12.58 mm)
Risk Report
Submit the form to generate a structured risk report.
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