Book checks and previews for independent publishers

Check your book before you upload it.

Preview your interior, inspect your cover, and catch common print-production problems before publishing through Amazon KDP.

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Free PDF checks Interior checks Cover checks Author Proof Full report Book templates
Catch problems early Review margins, trim, bleed, fonts, spine, and barcode placement.
See the finished book Inspect page spreads, a 3D mockup, and the Author Proof.
Upload with confidence Get clear findings before submitting your interior and cover files to KDP.
Choose where to start

Review the file you are preparing now.

Start with your print-ready interior, cover file, or a fresh book template.

Workspace

Upload, analyze, then review the full report and previews.

The same book setup drives both the interior checks and the cover calculations, so you can move between flows without repeating the basics.

Visual Review

Full-width preview and report workspace

After you analyze a file, this area becomes the main reading surface for mockups, spreads, cover overlays, and the Full Report.

Mobile readyDesktop wideOne report surface
PreviewBound
A Novel
Author
"A story of walls that remember, rooms that breathe, and the people who leave marks on both."
PreviewBound - Author
Upload a PDF or DOCX
Upload a PDF or DOCX
Pages 1-2
Upload a PDF or DOCX to open the flip-through preview
Pages 1-2
Flip through the interior like a real book. Use Full Report for the detailed summary and Cover preview for panel overlays.
Back safe
Spine safe
Front safe
Trim boundaryHingeText safe areaSpine boundaryBarcode reserve
Upload a cover PDF to preview the full back + spine + front layout.
PreviewBound Free — upgrade to remove watermark