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Books guide

How to publish a book on Amazon, step by step

To publish a book on Amazon, you use Kindle Direct Publishing (KDP): finish the manuscript, export an ebook file and a print PDF, prepare a cover, create the title in KDP with its metadata, choose an ISBN, upload and preview, then set the royalty and price and publish. KDP says books usually go live within 3 business days. This guide gives each step with KDP's own requirements, checked against its help pages in September 2026, and shows which parts Gixo Folio handles — the manuscript and files — and which stay in your KDP account.

3 business days KDP's stated time for a book to go live; search can lag up to 72 hours more.
35% or 70% KDP ebook royalty options; 70% needs a $2.99–$9.99 list price in eligible territories.
2,560 × 1,600 KDP's ideal ebook cover size in pixels, a 1.6:1 ratio.
6 × 9 in KDP's default paperback trim size.
A table of contents page from a Gixo Folio print PDF
The table of contents of a Folio print PDF — the kind of interior file you upload to KDP for a paperback.
01Brief the book
02Shape the outline
03Draft chapters
04Review the manuscript
05Export the edition
Folio is a strong fit whenThe manuscript still needs structure, revision, and a finish line.

Use the persistent book workspace when the outcome is a real guide, authority book, training manual, client asset, or exportable edition.

Consider another tool whenYou only need one narrow part of the publishing job.

If your manuscript is already finished and you only need specialist formatting or a dedicated fiction system, a focused tool may be the simpler choice.

What you need before you open KDP

Having these ready turns the KDP setup into a single sitting.

Ebook file
DOCX, EPUB or KPF
KDP accepts DOC and DOCX, EPUB and KPF for ebooks, among others. MOBI is no longer accepted for fixed-layout ebooks since March 2025.
Print interior
A PDF at your trim
A paperback interior sized to a KDP trim such as 5 × 8, 5.5 × 8.5, 6 × 9, 7 × 10 or 8.5 × 11. Bleed of 0.125 inch is only for images that run to the edge.
Cover
Ebook cover and print wrap
An ebook cover ideally 2,560 × 1,600 pixels in JPEG or TIFF; a paperback needs a full cover sized to the page count.
Metadata
Title, description, keywords
Title and subtitle, author name, description, keywords and categories, written before you start the form.
ISBN
Free KDP ISBN or your own
KDP offers a free ISBN for paperback and hardcover; an ebook does not need one.
AI disclosure
Know what KDP asks
KDP asks you to disclose AI-generated text, images or translations. Content you wrote and only edited or error-checked with AI counts as AI-assisted.

How to publish a book on Amazon KDP in six steps

The order that avoids re-uploading files after a late fix.

1
Finish and proofread the manuscript
Complete the edits first. A structural change after formatting means re-exporting and re-uploading every file.
2
Export the ebook and paperback files
Export a reflowable EPUB (or DOCX) for the Kindle ebook and a print PDF at your chosen trim for the paperback. KDP's default trim is 6 × 9.
3
Prepare the cover
Create the ebook cover at about 2,560 × 1,600 pixels and, for print, a full wrap — back, spine and front — sized to the final page count.
4
Create the KDP title and enter the metadata
In your KDP bookshelf, create the ebook or paperback, then add the title, author, description, keywords and categories, and answer the AI-content question.
5
Choose an ISBN, upload the files and preview
Pick the free KDP ISBN or enter your own for print, upload the manuscript and cover, and page through both in KDP's previewer.
6
Set the royalty and price, then publish
Choose the 35% or 70% ebook royalty, set list prices and territories, and submit. KDP says books usually go live within 3 business days.

Which KDP steps Gixo Folio handles

Folio prepares the book and its files; the KDP account and listing stay yours.

KDP stepGixo FolioYour KDP account
ManuscriptPlan, draft, revise and audit the bookNot a writing tool
Ebook fileExports EPUB 3 and DOCXAccepts EPUB, DOCX and KPF
Print interiorPrint PDF at 5 × 8, 5.5 × 8.5, 6 × 9, 7 × 10, US Letter and moreValidates the PDF against the trim and margins
CoverFront cover image, generated or uploaded; no print wrapNeeds the ebook cover and the full paperback wrap
ISBNValidates your ISBN and generates its barcodeIssues a free ISBN for paperback and hardcover
Listing, price and royaltiesNot part of FolioMetadata, pricing, royalties and publishing
Sources
Checked against KDP's own help pages

Every KDP requirement on this page was read from kdp.amazon.com help pages on 25 September 2026: manuscript formats, trim sizes and bleed, royalty options, AI content, ISBNs, publishing time, cover dimensions and title limits. KDP changes these rules from time to time, so confirm them in your account before you publish.

Royalties
How much Amazon pays

For ebooks, KDP offers 35% on any price, or 70% when the list price is between $2.99 and $9.99 in eligible territories, less a small delivery cost per download. Public-domain works are limited to 35%.

For paperbacks, the royalty is 60% of the list price minus the printing cost, and 40% for expanded distribution. KDP's own example: a $15 paperback with $4.60 printing cost earns ($15 − $4.60) × 60% = $6.24.

AI-written books on KDP
What the disclosure question means

KDP asks you to tell it about AI-generated content — text, images or translations — and counts it as AI-generated even if you edited it substantially afterwards. Using AI only to edit, refine or error-check writing you created yourself is AI-assisted and does not need disclosing.

If you draft chapters with Gixo Folio, answer that question accordingly. KDP also limits how many titles you can create at once: its help page says two per book format each week.

Where Folio fits
The manuscript and the files, not the account

Folio prepares downloadable book files; it does not publish them to a retailer, provide human copyediting, or guarantee publishing or commercial outcomes.

Folio validates an ISBN you already hold, converts between ISBN-10 and ISBN-13, and generates the barcode for your print cover. It does not issue ISBNs.

Frequently Asked Questions

How do I publish a book on Amazon?
Through Kindle Direct Publishing. Finish the manuscript, export an ebook file (EPUB or DOCX) and a print PDF, prepare the cover, create the title in KDP with its metadata, choose an ISBN, upload and preview, then set the royalty and price and publish.
How long does it take to publish a book on Amazon KDP?
KDP says a book usually goes live within 3 business days of submission, and search results can take up to 72 hours after that to show it. Writing and formatting the book is the long part.
What file format does Amazon KDP accept?
For ebooks, KDP accepts DOC and DOCX, EPUB and KPF, among others; MOBI is no longer accepted for fixed-layout ebooks since March 2025. For paperbacks, upload a print-ready PDF sized to your trim.
Do I need an ISBN to publish on Amazon?
Not for a Kindle ebook, where an ISBN is optional. For a paperback or hardcover, KDP offers a free ISBN, which lists the imprint as Independently published, or you can use your own.
How much does Amazon pay authors on KDP?
Ebooks earn 35%, or 70% at list prices between $2.99 and $9.99 in eligible territories, less delivery costs. Paperbacks earn 60% of the list price minus printing, or 40% through expanded distribution.
Do I have to disclose AI on Amazon KDP?
Yes, for AI-generated text, images or translations, even after substantial editing. Using AI only to edit or error-check your own writing is AI-assisted and does not need disclosing.
What size should my book be for KDP?
KDP's default paperback trim is 6 × 9 inches; 5 × 8 and 5.5 × 8.5 are common for fiction and memoir. The trim sets the page count and the cover dimensions, so choose it before you format.
Does Gixo Folio upload my book to Amazon?
No. Folio prepares the manuscript and exports the EPUB, DOCX and print PDF you upload. The KDP account, ISBN choice, cover wrap, listing and royalties stay with you on KDP.
Get the manuscript KDP-ready
Plan, draft and audit the book in Folio, then export the EPUB and print PDF you upload to KDP.