KDP PDF checking
Fix the KDP error you actually received
Paste the exact warning you received and verify it against the PDF itself.
Technically reviewed · September 1, 2026
What this issue means
Warning text is context, not authority. BookPreflight uses it to select likely checks, then confirms the cause with deterministic measurements before any repair is offered.
What BookPreflight checks
- Whether the warning matches the selected book specification
- The exact pages and regions that violate the measured rule
- Whether a repair is safe, needs a choice or must remain manual
How to correct the source file
- 1
Paste the complete KDP warning without adding private book text.
- 2
Upload the same PDF version that produced the warning.
- 3
Compare the measured finding with the official source linked in the report.
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.