Format Checker

KDP Format Checker

Inspect manuscripts and covers for KDP upload risks: page size, bleed, trim, spine, margins, and cover fit.
Local processing · no file storage
Local session ready
Paperback

KDP Checker

Preflight scanner and issue navigator

Upload cover and manuscript files, scan for practical KDP risks, then jump from each issue to the exact page or area.

Upload
Scan
Inspect
Fix report

Import Your Book

Upload your files and we'll auto-detect trim size, page count, bleed settings, and more.

Files are processed locally in your browser. We do not store your manuscript or cover.

Upload Cover (PDF, PNG, JPG)

Drop file or click to browse

Upload Manuscript (PDF)

Drop file or click to browse

· Cover: PDF, PNG, or JPG up to 650 MB

· Manuscript: PDF only, minimum 24 pages

· We'll auto-detect trim size, bleed, and page count

KDP checker FAQ

What does the KDP manuscript checker inspect?

It checks page size, trim match, bleed, margins, page count, and print-risk issues so you can see which pages need attention before upload.

What does the KDP cover checker inspect?

It compares your cover against the selected book specs, including full cover size, trim, bleed, spine width, and practical KDP upload risk.

What happens when I click an issue?

The workspace navigates to the affected page and can show the related overlay so you can see the problem in context.