Amazon KDP
KDP EPUB Submission Readiness
Check your EPUB before you upload to Kindle Direct Publishing. Find supported problems, repair what Cermify can repair, and see what needs your attention.
Start a free KDP inspectionOverview
KDP may reject EPUBs when book details, reading order, navigation, content, or embedded resources are not usable. Cermify checks these areas and may repair supported cases.
What Cermify checks
- Book details and metadata
- Reading order
- Navigation and table of contents
- Content and embedded resources
- EPUB package structure
Amazon KDP also requires an ebook cover image. Cermify's current KDP product focuses on EPUB Submission Readiness; standalone cover validation is not offered.
Common EPUB submission issues
Understand what these issues mean and whether Cermify can help.
- EPUB standards check results
- Destination-specific legacy markup check
- Book navigation is missing or out of sync
- A table of contents link does not work
- Book details are incomplete
- Reading order is incomplete
- The EPUB file package is inconsistent
- Content encoding evidence