You can set up a KDP print paperback in about an hour once your interior PDF and cover file meet Amazon’s specs — and there is no upfront cost, because KDP prints each copy only after a customer orders it.
In this guide, you’ll learn:
- The exact trim size, bleed, and margin numbers KDP requires in 2026
- How to build a print-ready interior PDF and a wraparound cover file
- Whether you need your own ISBN (and when the free one costs you nothing)
- How KDP print royalties actually work, including the 60% threshold
- The proof-copy checks that catch problems before your readers do
Here is the full setup, in order.
What Is KDP Print?
KDP Print — Amazon’s print-on-demand service that manufactures a paperback or hardcover copy of your book each time a customer orders one, then deducts the printing cost from your royalty.
There is no inventory, no minimum order, and no setup fee. You upload two files — a formatted interior PDF and a cover PDF — set a list price, and Amazon handles printing, shipping, and returns.
The tradeoff is per-unit cost. Print-on-demand costs more per copy than offset printing, so your margin is thinner than a traditional print run. For most self-published authors, that tradeoff is worth avoiding a garage full of unsold books.
Step 1: Set Up Your KDP Account and Tax Information
Before you can publish anything, you need a KDP account with completed tax and banking details. Go to kdp.amazon.com, sign in with your Amazon account, and fill in the Account Info section.
You’ll need your legal name and address, a bank account for direct deposit, and a tax interview (W-9 for US authors, W-8BEN for everyone else). Amazon will not pay royalties until the tax interview is submitted.
This takes about fifteen minutes and only has to be done once. If you’re starting completely fresh, our walkthrough on how to set up a KDP account covers each field.
Step 2: Choose Your Trim Size
Your trim size is the finished width and height of the printed book. Pick it before you format anything, because every margin calculation depends on it.
KDP’s most common sizes:
| Trim size | Best for | Notes |
|---|---|---|
| 5” × 8” | Novellas, poetry, gift books | Compact, higher page count |
| 5.5” × 8.5” | Fiction, memoir | The trade paperback standard |
| 6” × 9” | Nonfiction, business, self-help | Most popular size on KDP |
| 7” × 10” | Textbooks, illustrated guides | Large trim pricing applies |
| 8.5” × 11” | Workbooks, journals, manuals | Large trim pricing applies |
One detail that surprises people: books wider than 6.12 inches or taller than 9 inches count as large trim and are priced on a different printing-cost schedule. Staying at 6” × 9” or smaller keeps you on the cheaper tier.
Genre expectations matter too. A 6” × 9” romance novel looks wrong on a shelf next to 5.5” × 8.5” competitors. Our book trim sizes guide breaks down the conventions genre by genre.
Step 3: Format Your Interior PDF
Your interior file has to be a print-ready PDF with embedded fonts, correct page size, and mirrored margins. This is where most first-time uploads get rejected.
Margins and gutter
KDP’s minimum outside margin is 0.25 inches on the top, bottom, and outer edge. The inside margin — the gutter — has to be larger, because part of it disappears into the glued spine.
Gutter minimums scale with page count:
| Page count | Minimum gutter |
|---|---|
| 24–150 | 0.375” |
| 151–300 | 0.5” |
| 301–500 | 0.625” |
| 501–700 | 0.75” |
| 701–828 | 0.875” |
Set your document to mirrored margins, not uniform ones. On right-hand (odd) pages the gutter sits on the left; on left-hand (even) pages it sits on the right. The wide margin always hugs the binding.
Give yourself breathing room beyond the minimums. Amazon’s trimming tolerance is up to 0.0625 inches, so a page laid out at exactly 0.25 inches can come back looking uncomfortably tight.
Bleed
Bleed — extra image area extending past the trim line so that ink reaches the very edge of the page after cutting.
Most novels and text-only nonfiction need no bleed at all. You only need it if images or colored backgrounds touch a page edge — and if even one interior page needs bleed, the entire file must be built with it.
When you do need bleed, size the PDF page 0.125” wider and 0.25” taller than your trim size. A 6” × 9” book becomes 6.125” × 9.25”.
Fonts, images, and file basics
Embed every font in the PDF — KDP rejects files with linked fonts, and substituted typefaces wreck your layout. Images need to be 300 DPI at their placed size, not 300 DPI before you scale them up.
Page count must land between 24 and 828 pages for paperback. Below 24 there is not enough spine to bind; above 828 the block is too thick.
If you want the full formatting walkthrough with software-specific settings, see our guide on how to format a book for KDP and our roundup of book formatting software.
How Do You Format a Book for Print Without Design Software?
You can format a book for print using free or low-cost tools if you follow KDP’s page-size and margin specs exactly. The three realistic paths are a downloadable Word template, dedicated formatting software, or an AI writing platform that exports print-ready files.
Amazon’s free Word templates are the fastest starting point. KDP publishes pre-sized templates for every trim size with margins already set — you paste your manuscript in, apply styles, and export to PDF. Free, and it works.
Dedicated formatting apps like Atticus or Vellum give you real typographic control: drop caps, ornamental scene breaks, running headers that change by chapter. Our Atticus book formatting review covers whether the upgrade is worth it.
Our Pick — Chapter
If you’re still writing, Chapter handles the whole path from blank page to formatted export. You outline and draft with AI assistance, then export a clean manuscript that drops straight into a KDP trim-size template without the copy-paste formatting mess.
Best for: authors who want the writing and the print prep in one workflow Pricing: $97 one-time (nonfiction) | Fiction version available Why we built it: 10,000+ authors have used Chapter to write books, and the export step is where most of them used to lose a weekend.
Whichever route you take, export to PDF — not DOCX — for the final upload. PDF locks your layout in place.
Step 4: Build Your Cover File
Your print cover is a single wraparound PDF containing back cover, spine, and front cover in one image. It is not three separate files.
The spine width depends on your final page count and paper type, so you cannot build the cover until the interior is finished. Use Amazon’s free Cover Calculator — enter trim size, page count, paper color, and it generates an exact-dimension template with the spine and bleed marked.
Cover rules to follow:
- Every cover requires bleed — 0.125” on all outer edges
- Keep text and logos at least 0.25 inches inside the trim line so nothing gets cut
- Minimum 300 DPI for the whole cover image
- Spine text only prints on books over 79 pages, with 0.0625” clearance from each spine edge
- Save as a PDF with fonts embedded and no transparency layers
If your book carries a barcode, KDP places one automatically in the bottom-right of the back cover — leave that area clear. Our guides on barcode placement on book covers and bleed settings for book covers go deeper on both.
For templates sized to each trim option, see KDP cover template sizes.
Step 5: Enter Book Details and Choose an ISBN
In the KDP dashboard, click Create, then select Paperback. You’ll fill in three screens: Details, Content, and Rights & Pricing.
On the Details screen you’ll enter title, subtitle, series, author name, description, keywords, and two categories. Your description supports light HTML, and your seven keyword slots are prime real estate — treat them as search terms, not tags.
The ISBN decision happens here:
- Free KDP ISBN — costs nothing, works fine on Amazon, but the imprint shows as Independently Published and you cannot use it on other platforms
- Your own ISBN — purchased from Bowker in the US, lets you name your own imprint and reuse the same number across IngramSpark, Lulu, and bookstores
If you only ever plan to sell on Amazon, the free ISBN is genuinely fine. If you want wide distribution later, buy your own now — you cannot swap it in after publishing. Our post on free ISBNs lays out the tradeoff, and IngramSpark vs KDP covers why the choice matters for bookstore distribution.
Note that print and ebook editions need separate ISBNs. Same book, different formats, different numbers.
Step 6: Upload Files and Run the Previewer
Upload your interior PDF and cover PDF on the Content screen. Processing takes a few minutes for most files, longer for image-heavy books.
Then open the Print Previewer. This renders your book exactly as it will print, page by page, with the trim line overlaid. Do not skip it.
What to check in the previewer:
- Chapter openings all start on right-hand pages
- No blank pages where you didn’t intend them
- Page numbers sit inside the safe area
- Images are sharp, not pixelated or clipped at the edge
- Headers and footers are consistent across sections
- Nothing important sits within 0.25” of the trim line
KDP will flag hard errors — wrong page size, missing fonts, low-resolution images — but it will happily approve a book with an ugly layout. The previewer is your only visual check before print.
Step 7: Set Your List Price and Understand the Royalty Math
Print royalties on KDP work differently from ebook royalties. You earn a percentage of your list price, minus the printing cost, and the percentage depends on where you price.
The formula:
(Royalty rate × list price) − printing cost = your royalty per sale
Since June 2025, the US royalty rate is 60% for print books listed at $9.99 or above, and 50% below that threshold. That step is steep enough that pricing at $9.98 is almost always worse than pricing at $9.99.
Printing cost for a black-ink, regular-trim paperback in the US is roughly $1.00 plus $0.012 per page, with a flat $2.30 minimum for books under 110 pages. Color interiors and large trim sizes cost substantially more.
A worked example for a 300-page, 6” × 9” black-and-white paperback:
| Item | Amount |
|---|---|
| List price | $16.99 |
| Printing cost | $1.00 + (300 × $0.012) = $4.60 |
| Royalty rate | 60% |
| Royalty per sale | ($16.99 × 0.60) − $4.60 = $5.59 |
KDP also enforces a minimum list price so you can never lose money on a sale. It’s calculated as printing cost divided by your royalty rate — for the example above, $4.60 ÷ 0.60 = $7.67. KDP won’t accept anything lower.
Run your own numbers before you commit. Our KDP royalty calculator guide and how to price a paperback book walk through the pricing psychology alongside the math.
Expanded Distribution
Expanded Distribution pushes your paperback to bookstores, libraries, and other online retailers. It’s free to enable, but the royalty drops to 40% minus printing cost on those sales, because wholesalers take a cut.
Most bookstores still won’t stock a print-on-demand title with a non-returnable listing, so treat Expanded Distribution as a low-effort long shot rather than a strategy.
Step 8: Order a Proof Copy
Before you hit publish, order an author proof. It’s printed at cost plus shipping — usually under $10 — and arrives with PROOF stamped across the cover so it can’t be resold.
Hold the physical book. Things you’ll catch on paper that you missed on screen: gutter margins that are too tight to read comfortably, a cover color that printed darker than your monitor showed, paper stock that makes text bleed through, a spine title sitting off-center.
Give yourself five to seven business days for the proof to arrive. Rushing past this step is the most common regret among first-time print authors.
Common Mistakes to Avoid
- Uploading a DOCX instead of a PDF. Word files reflow during conversion and your careful layout falls apart.
- Using minimum margins exactly. With a 0.0625” trimming tolerance, minimums leave no safety buffer. Add at least 0.1” everywhere.
- Building the cover before the interior is final. Spine width depends on page count. Change one and you have to rebuild the other.
- Choosing the free ISBN when you plan to go wide. You cannot retroactively swap ISBNs on a published book.
- Pricing below $9.99 out of nervousness. The 50% royalty tier plus printing cost can leave you earning under a dollar per copy.
- Skipping the proof copy. Nothing on screen predicts how a gutter feels in your hands.
How Long Does It Take to Set Up KDP Print?
Setting up KDP print takes about one to two hours of active work if your manuscript is already written and edited. File upload and review happen in minutes, but Amazon’s quality review takes up to 72 hours before your paperback goes live on the product page.
Add five to seven business days if you order a proof copy first, which you should. Realistically, plan on two weeks from finished manuscript to live listing.
Can You Publish an Ebook and Paperback Together?
Yes — and you should. KDP lets you link a Kindle edition and a paperback edition so they appear on the same product page with format tabs, which concentrates all your reviews in one place.
Publish the ebook first if you’re on a deadline, since Kindle files go live in under 24 hours while print takes up to 72. KDP will automatically link editions with matching titles and authors, or you can request linking through support if it misses.
Does KDP Print Hardcovers Too?
KDP prints hardcovers in a limited set of trim sizes with case-laminate binding and no dust jacket. Setup is nearly identical to paperback, with two differences: the minimum page count is 75 instead of 24, and the cover template accounts for a wraparound hinge.
Hardcover printing costs run significantly higher, so list prices typically land between $24.99 and $34.99. See our hardcover book production guide and print on demand hardcover options for the full comparison.
FAQ
How much does it cost to set up KDP print?
Setting up KDP print costs nothing upfront. There is no setup fee, no listing fee, and no minimum order. Your only optional costs are a proof copy (printing cost plus shipping, usually under $10) and your own ISBN if you skip Amazon’s free one.
What trim size should I choose for KDP print?
For KDP print, choose 6” × 9” for nonfiction and 5.5” × 8.5” for fiction — these are the genre standards and both stay under the large trim threshold, which keeps printing costs on the cheaper tier. Match what competing books in your category already use.
Do I need bleed for a KDP paperback?
You need bleed for a KDP paperback only if images or colored backgrounds touch the page edge. Text-only books need no bleed. If even one page requires it, build the entire PDF with 0.125” bleed, sizing pages 0.125” wider and 0.25” taller than trim.
How much does KDP charge to print a paperback?
KDP charges roughly $1.00 plus $0.012 per page for a black-ink, regular-trim US paperback, with a $2.30 minimum under 110 pages. A 300-page book costs about $4.60 to print. Color interiors and large trim sizes cost considerably more per copy.
Can I change my KDP print book after publishing?
Yes — you can update your interior file, cover, description, keywords, categories, and price at any time after publishing. Changes go through quality review again, usually within 72 hours. The one thing you cannot change is your ISBN, so choose it carefully before you hit publish.
Once your paperback is live, the next job is getting it found. Start with Amazon Author Central setup to claim your author page, then work through how to choose Amazon book categories to make sure your book is competing where it can actually rank.
Sources: KDP Paperback Submission Guidelines, KDP Trim Size, Bleed, and Margins, KDP Paperback Printing Cost, KDP Print Book Pricing, Kindlepreneur KDP Royalty Calculator, Bowker ISBN, BookBeam Royalty Calculator.
