KDP PDF checking
Check every interior page
Measure every interior page instead of checking only the document preset.
Technically reviewed · September 1, 2026
What this issue means
Mixed page boxes, mirrored margins and placed objects can make only part of a book fail. Page-level inspection identifies those outliers while preserving the original PDF.
What BookPreflight checks
- Consistent trim and orientation
- Binding-aware inside and outside margins
- Blank-page runs, fonts and effective image DPI
How to correct the source file
- 1
Select left-to-right or right-to-left binding correctly.
- 2
Upload the final interior PDF with the intended blank pages.
- 3
Open each finding at its exact page before editing the source.
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.