How to Fix Amazon KDP Manuscript Health Issues
Authors sometimes say KDP flagged manuscript health. For print interiors, that usually maps to technical PDF health: fonts, image resolution, transparency that may not print cleanly, and layout pressure — not grammar or plot.
Font embedding matters because a printer may substitute fonts if glyphs are missing, changing line breaks. Image resolution matters because low-resolution photos can look fine on screen but soft in print. Tools that surface these risks before upload save you from ordering a proof that already looked wrong at the RIP stage.
InkAlign includes a readiness-style manuscript health report alongside margin, bleed, and gutter handling for KDP-style trims: you see embedding and image signals in context with the rest of the print check, then move to a corrected export when you are ready.
Start with the free scan on inkalign.com — it is the fastest way to learn whether your PDF is fighting the press before you spend time in KDP’s uploader.
See health, margin, and bleed signals in one pass
Open InkAlign