Converter
Format Your Manuscript as a 6×9 Book
6×9 in is the standard trade-paperback trim. Upload your Word manuscript and get a 6×9 interior PDF with the margins and gutter exactly right.
6×9 inches is the most common self-publishing trim size — the standard for trade paperbacks on Amazon KDP and IngramSpark. Getting it right takes more than setting the page size in Word: the PDF must be exactly 6×9 on every page, margins must mirror between left and right pages, the inside gutter must grow with your page count, and every font must be embedded. Ceeryo handles all of it: upload your .docx, pick an interior theme, and download a 6×9 interior that passes KDP preflight, plus an EPUB for the ebook edition.
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Last updated: August 5, 2026 · Reviewed by the Ceeryo team
Interior theme
Print-ready PDF + EPUB. Your words never change — only the typography.
How it works
How to format your manuscript as a 6×9 book in four steps
The fastest way to format your manuscript as a 6×9 book without manual copy-paste, screenshots, or formatting cleanup.
- Step 1
Upload your Word document
Drop in the messy .docx you want cleaned up. Your file is processed only to format it and is never used to train models.
- Step 2
AI reads the structure
The AI detects headings, body text, lists, and tables, and finds inconsistent styling, without changing any of your wording.
- Step 3
Formatting is fixed
Heading styles, alignment, spacing, fonts, lists, indentation, and margins are made consistent across the whole document.
- Step 4
Download the clean .docx
Get a still-editable Word file that opens in Microsoft Word, Google Docs, and LibreOffice: clean formatting, your words unchanged.
In short
A 6×9 book interior needs exact 6×9-inch PDF pages, mirrored margins, a gutter sized to page count (0.375"–0.875" per KDP's table), and embedded fonts. Ceeryo produces that from your Word manuscript in minutes, with a preflight report verifying each requirement.
What margins does a 6×9 book need?
For a 6×9 paperback on KDP with no bleed, outside/top/bottom margins must be at least 0.25" (Ceeryo uses roomier 0.5–0.75" for comfortable reading), and the inside gutter depends on page count: at least 0.375" up to 150 pages, 0.5" to 300, 0.625" to 500, 0.75" to 700, and 0.875" to 828. Ceeryo computes this automatically from your book's real page count.
Why 6×9
The default trim for a reason
6×9 fits more words per page than smaller trims, which lowers page count and printing cost per copy — usually the best royalty math for novels over ~60k words. If your book is shorter, a 5×8 trim reads more like traditional fiction; both are one click here.
- ~320 words per page in a readable 11pt serif
- Lower printing cost per copy than smaller trims for long books
- Supported by KDP, IngramSpark, Lulu, and Barnes & Noble Press
Features
Why teams choose Ceeryo for format your manuscript as a 6×9 book
Exact 6×9 geometry
Every page is precisely 432×648 pt with mirrored margins and drop folios.
Automatic gutter bracket
The engine renders, counts pages, and re-renders with the correct KDP gutter for your length.
Three interior themes
Literary, romance, and thriller designs tuned for the 6×9 text block.
Use cases
Where format your manuscript as a 6×9 book works best
Novels over 60k words
The page-count economics favor 6×9.
Nonfiction and memoir
The standard professional trim for text-led books.
Matching a series
Your earlier books are 6×9 and the new one must match.
Why not just copy-paste?
Ceeryo vs. doing it manually
Fixing formatting by hand takes ages and rarely comes out consistent. Here's the difference.
Output quality
What the cleaned document looks like
Every format your manuscript as a 6×9 book run produces a preflight-checked print PDF and a clean EPUB — never a rewrite of your words. Here's what you get.
- 432×648 pt pages, verified on every page of the PDF
- Gutter meets KDP's bracket for your exact page count
- Running heads and folios placed for the 6×9 text block
- Fonts embedded and subset for print
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Frequently asked questions
Is 6×9 right for my book?+
For most novels and nonfiction over ~60,000 words, yes — it is the standard trade size with the best printing-cost math. Short novels and novellas often look better at 5×8; both are available in the same tool.
Do you add bleed?+
Text-only interiors don't need bleed, and KDP prefers no-bleed for them. The pages are exact trim size — which is what the previewer checks.
Can I switch trims later?+
Yes — re-upload and pick a different trim; the engine recomputes margins, gutter, and page count for the new size.
Get your 6×9 interior
Upload the manuscript and download the print-ready 6×9 PDF.