Knowledge · Rule
Content collides with KDP barcode clear zone
Cover · C-BARCODE
Definition
Text, logos, or artwork overlap the paperback barcode clear zone on the back cover, which can block KDP's barcode or make it unreadable.
Why
- Back-cover design fills the lower-right barcode area with art or text.
- Publisher barcode placed in a different spot than KDP's reserved zone.
- Scaled wrap shifted back-cover elements into the clear zone.
- QR codes or badges stacked where KDP applies its barcode.
Impact
Often a warning on KDP; still review before upload.
Platforms
| Platform | Result |
|---|---|
| KDP | Warning |
| Apple Books | Unknown |
| Google Play | Unknown |
| Kobo | Unknown |
References
- KDP barcode / clear zone guidelines
- Cermify cover engine — C-BARCODE
Last updated · 2026-08-03
Why we believe
Provenance is loaded from RID (same source as Rule Radar) — not a second copy.
Loading provenance…