KDP Pre-Flight Check

Free self-check for Amazon KDP paperbacks, before you hit Publish: interior PDF size & page count, full-cover dimensions & resolution, metadata & keyword rules, and a royalty estimate.

πŸ”’ Everything runs in your browser β€” your files never leave your device.

1 Β· Book setup

Tell the checker what you are about to enter in the KDP dashboard. Every later check compares your files against these settings.

2 Β· Interior PDF

Checks page count, that every page has the same size, and that the page size matches your trim + bleed setting. Paperbacks need at least 24 pages.

3 Β· Full cover (PDF or image)

A KDP paperback cover is one full wrap: back + spine + front, with 0.125 in bleed on every side. Expected size is computed from your trim, interior type and page count. If you skipped step 2, type the page count here.

PDF: page size is compared with the expected wrap size. Image (PNG/JPG): effective DPI is computed against the expected wrap size (KDP wants 300 DPI).

4 Β· Metadata & keywords

The rules KDP actually enforces: description up to 4,000 characters; seven keyword slots, each up to 50 characters. Promotional claims (β€œfree”, β€œbestseller”, β€œ#1”, sale/discount wording) in keywords are a classic rejection and quality-flag trigger.

0 / 4,000 characters

5 Β· Royalty estimate (Amazon.com, paperback)

Estimate only, using KDP's standard print-cost formula (black & white: $0.85 + $0.012/page; color: $0.85 + $0.072/page) and the 60% royalty rate. Real printing cost varies slightly by trim and marketplace β€” confirm in KDP's own calculator before pricing.

Enter a price (page count comes from step 2 or 3).

6 Β· Upload-day checklist

The non-file items that most often stall a KDP release. Tick what is already true for you.

Readiness: 0%

7 Β· Report card

Summary of everything checked above. File specs and metadata are the free layer β€” content-level verification is what the deep audit adds.

ModuleStatusNote
Interior PDFnot runβ€”
Full covernot runβ€”
Metadata & keywordsnot runβ€”
Upload-day checklistβ€”β€”

What this free check cannot see

Wrong answers inside a workbook. A word-search puzzle with no solution. A story chapter whose text contradicts its own timeline. The deep audit runs your content, not just your files: every exercise answer executed in a real interpreter, every puzzle solver-verified, a page-by-page QA report you can sign off item by item β€” the same process used to ship three live KDP titles.

Deep audit β€” opening soon