KDP error guide
Locate the exact object KDP may reject
Identify the vector, line, decoration or hidden object that crosses a protected edge.
Technically reviewed · September 1, 2026
What this issue means
A nearly invisible vector point can enlarge the PDF content bounds. Page-region evidence narrows the search without claiming that every edge-touching object is unsafe.
What BookPreflight checks
- Vector and clipping-path bounds
- Objects outside the trim or safe region
- Whether the object is visible, clipped or intentional bleed
How to correct the source file
- 1
Inspect the named page in outline or wireframe view.
- 2
Delete stray points or correct the clipping path in the source.
- 3
Re-export rather than editing arbitrary PDF coordinates.
Verify the exported PDF, not the preset name
Keep the editable source and original PDF. Export a new file, run the complete scan again and review every remaining finding. A repair is only labelled safe after loss checks and a full deterministic post-flight.
BookPreflight is an independent tool. It is not affiliated with or endorsed by Amazon or Kindle Direct Publishing, and it cannot guarantee acceptance.