How to Format a Book in Affinity Publisher for KDP Print (2026)

If you want a printed book that looks professionally laid out, but you do not want to pay a monthly subscription for Adobe InDesign, Affinity Publisher 2 deserves a serious look. It is Serif’s desktop-publishing app for Windows, Mac, and iPad, built for facing-page layouts, precise typography, image placement, and print-ready PDF export. For many independent authors, it sits in a useful middle ground between a word processor and a full professional layout studio.

That middle ground matters because print formatting is less forgiving than ebook formatting. A printed page has a fixed trim size, fixed margins, a gutter that disappears into the spine, and images that must hold up at print resolution. Affinity Publisher is designed for exactly that job.

This guide explains how to format a book in Affinity Publisher for Amazon KDP print, from document setup through export and upload. It covers who the app suits, who should choose a simpler tool instead, and the checks that prevent the most common KDP problems. Prices and licensing can change, so check Serif’s current page before you buy.

What Affinity Publisher 2 Is, and What It Is Not

Affinity Publisher 2 is a page-layout application, not a word processor and not a one-click ebook converter. You place text in linked frames, design master pages for repeating elements such as page numbers and running heads, and control spacing, hyphenation, and image placement page by page. That control is the point: if you care where a photograph sits or how a chapter opening looks, Publisher lets you decide.

It is also the layout alternative to InDesign without a monthly subscription, at least in the form in which most authors have bought it so far. Affinity Publisher 2 has sold as a one-time purchase for the current major version, with recent listings around 69.99 dollars for one app and a Universal Licence bundle covering Publisher, Designer, and Photo around 165 to 170 dollars. In 2025 there were also reports that Canva-owned Affinity could revisit subscriptions in future, so do not treat the current purchase model as a promise that it will never change.

What Publisher is not matters just as much. It does not turn a manuscript into a polished reflowable ebook with one click, and it does not offer the same huge template and plugin ecosystem as InDesign. If your main goal is a simple ebook and you want the fastest route to Kindle, an ebook-first tool will usually serve you better.

Who Should Use Affinity Publisher, and Who Should Choose Something Else

Affinity Publisher suits authors who want InDesign-level control over a print book without taking on a subscription. That includes authors of illustrated books, photo books, cookbooks, children’s picture books, workbooks, and design-led nonfiction, where images, captions, sidebars, and page design are part of the reading experience.

Print-first authors are the clearest fit. If you are designing for paper first and will accept an ebook as a secondary product, Publisher lets you build the book the way a print designer would: fixed pages, deliberate breaks, and images placed with intent.

Authors who should not start here are just as easy to identify. If you want one-click, ebook-first formatting, use an Atticus or Vellum-style tool or hire a formatter instead. our Vellum book formatting guide Those tools are built to produce a clean reflowable ebook with far less setup, and they ask far fewer layout questions. Total beginners on a tight deadline should also think twice, because Publisher has a real learning curve and a print deadline is a poor time to learn facing pages, styles, and Preflight at once.

How to Set Up Your Document for KDP Print

Good print formatting starts before you paste a single paragraph. When you create a new document in Affinity Publisher, choose facing pages, because KDP print books are read as spreads with a left and a right page. Set the page size to your exact KDP trim size, not a close approximation, and set the margins with a wider inside margin to allow for the gutter, the part of the page that curves into the spine. Confirm your numbers against KDP’s current specifications for your book before you build.

Bleed is the next setting to get right, and it is where many first print files fail. Bleed is the extra image area beyond the trim edge that is cut off after printing, and for KDP it is 0.125 inch, or 3 millimetres. our guide to setting up print bleed If a photograph or coloured background is meant to run to the edge of the page, it must extend into that bleed area, or you risk a thin white strip after trimming.

Colour and image resolution complete the foundation. Set the document colour format to CMYK for print, rather than the RGB colour used for screens, and plan for images at 300 DPI at their placed size. An image that looks sharp on screen can look soft in print, and enlarging a small image to fill a page will not restore detail that was never there.

How to Format a Book in Affinity Publisher, Step by Step

Start with master pages, because they carry everything that repeats. A master page can hold page numbers, running heads, and any background rule or ornament that should appear on most pages. Apply different masters to chapter openings, body pages, and front matter, so a chapter title page does not inherit a running head it should not have. Small decisions here save hundreds of manual fixes later.

Next, build paragraph styles and character styles before you format the body text in earnest. A paragraph style controls the whole paragraph: font, size, leading, alignment, space before and after, first-line indent, and hyphenation. A character style controls a run of words inside a paragraph, such as italics for a book title.

Then flow the text through linked text frames. In Publisher, text lives in frames, and frames can be linked so text flows from one page to the next. Place your manuscript, let it flow, and then adjust breaks deliberately: start each chapter on a suitable page, keep headings with the text that follows them, and avoid single lines stranded at the top or bottom of a page.

Images need the same discipline as text. Place images with the Place tool, check that each image is linked rather than accidentally embedded at low resolution, and confirm its effective resolution at its placed size. our Kindle Create versus Vellum comparison Keep captions with their images, watch for images that sit too close to the gutter, and check every spread, not just single pages, because a photograph that looks fine alone can crowd the spine when it faces another image.

When the chapters are laid out, use the Books panel if your book is built from separate chapter files. The Books panel combines those files, keeps their order, and updates page numbers when you reorder or add a chapter, which is far safer than manually renumbering a long book. That updating matters most in a long book, where a single added chapter would otherwise force you to renumber every following page by hand. Even in a single file, keep the same discipline: one source of truth for the manuscript, one set of styles, and no duplicate chapter files with slightly different edits.

How to Check, Export, and Upload Your Print-Ready PDF

Before you export, run Preflight, Affinity Publisher’s built-in check for common print problems. Preflight flags missing fonts, missing or low-resolution images, overset text that has flowed beyond its frame, and other issues that can ruin a print file. Treat every warning as a task, not background noise. A missing font can change line breaks throughout a chapter, and overset text can silently hide the end of a paragraph.

Export settings deserve the same care as layout. Choose PDF for print, embed all fonts, include bleed, and set Area to All Pages, not All Spreads. That last choice matters for KDP: spreads are useful for proofing on screen, but KDP expects single pages in reading order, and an All Spreads export can produce a file that does not upload or paginate as expected.

Upload checks are separate from export checks. KDP treats the interior PDF and the cover as separate files, so upload them independently and confirm that each file matches the trim size, bleed setting, and page count you intended. Check the page count against your manuscript, because a missing or duplicated chapter often shows up first as a page-count surprise. If anything looks wrong, fix it in Affinity Publisher and re-export, rather than trying to patch the PDF itself.

Order a proof copy before you approve the book for sale. A screen preview cannot show how paper, ink, gutter loss, and image sharpness actually feel in hand, and a proof is cheap insurance against a public mistake.

• Confirm the exact KDP trim size, margins, and gutter for your page count before building.
• Set facing pages, 0.125-inch bleed, CMYK colour, and 300 DPI images from the start.
• Build master pages for body pages, chapter openings, and front matter.
• Create paragraph and character styles before formatting the full manuscript.
• Link text frames, keep headings with following text, and review every spread.
• Run Preflight and fix missing fonts, low-resolution images, and overset text.
• Export a print PDF with embedded fonts, bleed included, and Area set to All Pages.
• Upload interior and cover separately, verify page count, and order a proof copy.

The Honest Limits: Learning Curve, Ebooks, and Upgrades

Affinity Publisher has a genuine learning curve, and honest advice should say so plainly. Facing pages, master pages, styles, text-frame linking, and Preflight are powerful, but they are new concepts if you have only ever used a word processor. Expect your first chapter to take longer than you hope, and budget time to practise before you commit to a publication date.

The ebook limit is equally important. Publisher is a print-layout tool first, and it does not offer a simple one-click reflowable-ebook pipeline comparable to ebook-first tools. You can produce a PDF for print and work separately on an ebook edition, but do not buy Publisher expecting it to generate a polished EPUB from your print layout automatically.

Finally, remember that major-version upgrades are paid. A one-time purchase for the current major version does not automatically include every future major version, and licensing terms can change, as the 2025 reports about possible future subscriptions remind us. Before you buy, check Serif’s current page for what the price includes and whether an upgrade path exists. Your exported PDFs remain yours either way, but your editable Publisher file depends on having a compatible version of the app.

Conclusion: Start With the Print File, Then Decide

The best way to format a book in Affinity Publisher is to treat print as a craft, not as a file conversion. Set the trim, gutter, bleed, colour, and resolution correctly at the start, build the book on master pages and styles, and let Preflight and a physical proof copy catch what your screen cannot. That discipline is what turns a manuscript into a book that feels intentional in a reader’s hands.

If you want print control, illustrated layouts, and a consistent series design without a monthly subscription, Publisher is a strong and affordable choice, provided you check Serif’s current pricing and licensing before you buy. If you want the fastest ebook-first route, or you are on a deadline with no time to learn layout, choose a simpler tool or a professional formatter instead. Decide based on the book you actually want to publish, and let that decision guide your format.