Book formatting
Book Formatting Software That Runs in Your Browser
Everything the desktop formatters do for a novel — trim sizes, margins, chapter design, EPUB export — without installing or learning anything.
Desktop book formatting software is powerful and expensive: Vellum is $249 and Mac-only, Atticus is $147 and a tool you have to learn. Ceeryo is the browser alternative for text-led books: upload the manuscript you already wrote in Word, pick one of three designed interior themes, and the engine typesets the whole book — chapter openers, drop caps, running heads, justified and hyphenated text, correct KDP geometry — and hands you a print-ready PDF plus an EPUB. There is nothing to install, no template to fight, and no project file to manage. For a novel, the entire job takes minutes.
Print PDF + EPUB together Minutes per book Try without signing up
Last updated: August 5, 2026 · Reviewed by the Ceeryo team
You'll confirm chapters, title and front matter before anything is set. Your words never change — only the typography.
Real output
What the typeset pages actually look like
Chapter opener and body page from each interior theme — rendered from the engine's real output at 6×9, not mockups.
How it works
From manuscript to book in four steps
The fastest way from a finished Word manuscript to print-ready files — no templates, no desktop app, no per-page fiddling.
- Step 1
Upload your manuscript
Drop in the .docx manuscript you have finished writing. Your file is processed only to typeset it and is never used to train models.
- Step 2
Chapters are detected
Chapter openings, scene breaks and italics are found automatically, without changing a word of your text.
- Step 3
The book is typeset
Trim size, margins and gutter, running heads, drop caps and chapter openers are set as a real book interior.
- Step 4
Download print PDF + EPUB
A print-ready interior PDF at your chosen trim size plus a clean EPUB, checked against the geometry KDP enforces.
In short
Book formatting software lays out your manuscript as a print interior and an ebook. Desktop options (Vellum $249 Mac-only, Atticus $147) are apps you buy and learn; Ceeryo does the same job for text-led books in the browser — upload a .docx, pick a theme, download a KDP-ready PDF and EPUB in minutes.
What does book formatting software actually do?
It converts a manuscript into publishable files: a print-interior PDF with exact trim size, mirrored margins and gutter, chapter typography, running heads and page numbers — and an EPUB for ebook stores. The difference between tools is where that happens: Vellum and Atticus are desktop apps you configure; Ceeryo does it server-side from your Word file with pre-designed themes.
Browser vs desktop
The no-learning-curve alternative
Desktop formatters are worth learning if you format books every month. If you have one manuscript and want it publishable this evening, learning project-based software is the wrong trade. Ceeryo collapses the workflow to upload → theme → download, with the typographic decisions already made by the theme designers.
- Nothing to install — works on Windows, Mac, and Chromebook
- Three designed themes instead of a hundred settings
- Print PDF and EPUB from one upload
- Pay per book instead of $147–249 up front
Features
Why authors choose Ceeryo
Designed interior themes
Marlowe (literary), Colette (romance), and Vantage (thriller) — each a complete typographic system: chapter openers, ornaments, running heads, folios.
Automatic structure detection
Chapter headings, scene breaks, italics, and front matter are detected from your Word file — no tagging or cleanup pass required.
KDP-correct geometry
Trim sizes from 5×8 to A5 with mirrored margins and a gutter sized to your final page count, verified by a preflight report.
Use cases
Where Ceeryo works best
Windows author who can't run Vellum
Vellum is Mac-only. Ceeryo runs anywhere a browser runs.
One book, not a workflow
You publish occasionally and can't justify desktop-app pricing or the setup time.
Deadline formatting
The launch is this week and the interior still isn't done. Minutes, not evenings.
Why not do it by hand?
Ceeryo vs. doing it manually
Typesetting a book by hand in Word or InDesign takes days and rarely passes KDP's checks the first time. Here's the difference.
Output quality
What the finished book files look like
Every run produces a preflight-checked print PDF and a clean EPUB — never a rewrite of your words. Here's what you get.
- Trade-book conventions: recto chapter openers, drop folios, suppressed opener heads
- Embedded professional book faces (Garamond, Crimson, Source Serif lineages)
- Widow/orphan control and hyphenated justification
- Clean EPUB3 that passes structural validation
Topic cluster
Related book formatting tools
Other ways to turn your Word manuscript into a finished book.
Word count to book pages — measured, not estimated
Most words-per-page tables are guesses. These numbers come from actually typesetting manuscripts at each trim size.
bookformatterFormat Your Book for Amazon KDP in Minutes
Upload your .docx manuscript, pick a trim size and interior theme, and download a print-ready PDF that passes KDP's checks — plus an EPUB for the Kindle edition.
bookformatterFormat 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.
bookformatterFormat Your Novel as a 5×8 Book
The compact trim classic fiction is printed at. Upload your manuscript and get a 5×8 interior with the type sized for the smaller page.
bookformatterTurn Your Manuscript into a Print-Ready PDF
From double-spaced draft to typeset book interior — trim size, margins, chapter design, and preflight in one pass.
bookformatterFormat Your Paperback Interior
The inside of the book, done to trade standards — so your paperback reads like it came from a publisher.
bookformatter
Frequently asked questions
How is this different from Vellum or Atticus?+
They are desktop apps you buy, install, and learn, with deep customization. Ceeryo is a browser tool with opinionated themes: less to configure, nothing to learn, priced per book. If you want pixel-level control, use a desktop app; if you want a beautiful standard interior now, use this.
Do I need to prepare my manuscript?+
Just write chapters the normal way — 'Chapter One' lines or Heading 1 styles, scene breaks as *** or a blank line gap. The parser handles the rest and reports what it detected.
What about nonfiction with tables and figures?+
Out of scope on purpose. Ceeryo is built for novels, memoirs, and text-led nonfiction — that focus is why the output is reliable.
Format your book without the software
Upload the manuscript, pick a theme, and download both editions' files.