Where the barcode goes
On paperback and hardcover books, Amazon prints the retail barcode in the lower-right corner of the back cover. It is added during production from the ISBN on your listing, so you never place it manually. What you do control is keeping that corner clean.
How much room to leave
Reserve a clear area of about 2″ wide × 1.2″ tall in the lower-right of the back cover. Keep it free of:
- Body text, taglines or author blurbs
- Logos, icons or fine detail
- Dark fills or busy patterns that hurt scan reliability
Ideal setup
A light, plain background in that corner. The printed barcode sits cleanly on top and scans without trouble.Common mistake
Running your back-cover paragraph or a dark photo straight through the lower-right — the barcode then overlaps your content.Free KDP ISBN vs your own
With a free KDP-assigned ISBN, Amazon generates and places the barcode for you — just keep the area clear. If you bring your own ISBN, follow KDP's instructions for that case. Either way, the lower-right back-cover zone is what you protect during design. The official rules are in the KDP Help Center.
Where this fits in cover design
- Keep all text inside the live area — see the safe zone guide.
- Understand the full wrap layout in the paperback cover template guide.
- Size the whole cover with the cover size calculator.
How KDPBuilder helps
KDPBuilder helps you prepare covers that keep the barcode corner clear and your text inside the safe zone, so the finished back cover looks intentional once Amazon adds the barcode. The result is a clean, upload-ready cover that respects KDP's print layout.