How a KDP cover update works
From the Bookshelf, edit the book's content section, upload the replacement cover, and republish. The book stays on sale with the old cover while KDP reviews the change, which the platform describes as typically completing within 72 hours. Ebook updates are a single file swap; print updates re-enter the same file review as the original submission, so the replacement wrap has to pass every dimensional check again.
The print trap: the spine remembers the page count
A print cover is sized to a specific interior. If the interior was ever revised — even a formatting pass that shifted pagination — the spine width on file is no longer the spine width the book needs, and a rejection follows. Before exporting a replacement wrap, confirm the current final page count, paper, and trim in KDP, recalculate the sheet, and compare the new PDF against KDP's freshly generated template.
What changes for readers, and what does not
The listing keeps its reviews, ratings, ASIN, and sales rank; a cover update is a presentation change, not a new edition, and it does not need a new ISBN. Printed copies already in circulation keep the cover they were printed with. Retail pages and search results show the new cover once the review completes and caches refresh.
Keeping redesigns cheap by keeping the design editable
Cover updates are routine — rebrands, series alignment, a sharper thumbnail — so the expensive version of this task is starting from a flattened JPG. An editable project makes a redesign a revision instead of a rebuild: adjust the layers, re-run the wrap calculation, and re-export. Coverfairy keeps purchased cover projects editable with re-exports included, and the guide below covers when a redesign is actually worth it.
Sources: Amazon KDP help center. Reviewed ; recheck the official page before production.