How to Fix Amazon KDP Manuscript Issues
On Kindle Direct Publishing, “manuscript” usually means your interior PDF for paperbacks or the content file for ebooks. This article focuses on the paperback interior: the file that most often fails for technical reasons unrelated to your writing quality.
Typical manuscript issues include: page dimensions that do not match the trim selected in KDP; fonts that are not embedded or subset in a print-safe way; margins and gutter that violate minimums; and bleed problems on full-bleed pages. Errors often appear as generic upload messages until you inspect the PDF against Amazon’s current interior guidance.
InkAlign does not rewrite your story — it helps you ship a technically sound interior PDF for standard paperback sizes: upload your export from Word, Google Docs, Canva, or any toolchain, run the free scan, then apply corrections and download a print-ready file when you are ready. That shortens the loop between “KDP rejected my PDF” and a passing upload.
For font and image-quality signals specifically, see manuscript health issues.
Note: InkAlign is not affiliated with Amazon.com, Inc. Confirm the latest KDP requirements for your book type.
Scan your interior before you upload again
Run InkAlign free scan