The book editor made for typographers.

A calm, uncompromising workspace for setting beautiful books, with a publisher-grade typographic engine, print-ready PDF & EPUB export, and no quality limits.

Free, forever.

◐ macOS (Beta) · Windows (Beta)
SapparStudio — Real-time preview
What makes Sappar different

Professional-grade typesetting, without the professional-grade price tag, and without the professional-grade learning curve.

  1. i.
    Export anything, freepdf & epub · unlimited

    Print-ready PDF and reflowable EPUB, every time. No watermarks, no page caps — just pure freedom.

  2. ii.
    What you see ships1:1 screen-to-press

    Live previews are pixel-faithful to the final book. No more proof-print surprises, no more "it looked fine in the editor."

  3. iii.
    Publisher-grade paragraph layout, modernized.next-gen engine

    A generational step past what book software has done for forty years.

See the difference.

Toggle each feature and watch your page transform in real time. Every option shown here ships in Sappar Studio.

Chapter numbering
Pick how chapters are labeled.
01
Chapter subtitle
An additional line below the chapter title.
02
Drop Cap
A large opening letter that draws the reader into the chapter.
03

Chapter One

The Letter
A Second Arrival

The art of setting type is an invisible art. When practiced with mastery, the reader never notices the typographer's hand — only the story flows. Each decision about leading, measure, and margin serves a single purpose: to make reading effortless and pleasurable, sentence after careful sentence.

Professional typesetters understand that justification is not merely about aligning edges. It is about creating an even texture — a consistent grey value across the page that allows the eye to move without interruption. Rivers of whitespace, uneven word spacing, and orphaned lines break this contract with the reader and cheapen the page.

The finest books share a quality that is felt rather than seen. Their pages possess a quiet authority, a sense that every element has been considered. This is the difference between writing and publishing — between a document on a screen and a page worth holding.

23
Page number
04
Ornament
A decorative symbol between the chapter heading and body text.
05
Balanced line spacing
Adjusts line breaks so paragraphs stay visually even and readable.
06
Hyphenation
Prevents awkward spacing by intelligently splitting words when necessary.

Everything your book needs.

Professional publishing features that just work. No learning curve required. Typography, design, and export in one native app.

The typesetting engine

Publisher-grade typography, automatic.

The same algorithm the world's best publishers use: thousands of break points evaluated per paragraph, choosing the quietest one in microseconds.

In a well-set book the text appears as a single, calm presence: an even grey texture that lets language flow unobstructed from line to line. The engine evaluates thousands of possible break points for every paragraph, weighing the aesthetic cost of each arrangement before choosing the quietest one.

Write & design

Twelve themes. One canvas.

Carefully crafted interior designs inspired by classic publishing houses. Switch themes in a click. Typography, spacing, ornaments, and chapter styling adapt instantly.

Chapter I
The Long Afternoon
In a well set book the text appears as a single calm presence an even grey texture that lets language flow unobstructed from line to line.
evergreen
Chapter III
Atelier
The finest books share a quality that is felt rather than seen a quiet authority that makes the reader forget the hand that set it.
atelier
Chapter VII
Hemlock House
Each decision about leading measure and margin serves a single purpose: to make reading effortless and pleasurable.
hemlock
Chapter II
Meridian
Professional typesetters understand that justification is not merely about aligning edges but about creating an even texture.
meridian
+ 4 more
Export & publish

One manuscript. Every format.

Publisher-ready PDF with embedded fonts and CMYK color. Reflowable EPUB from the same project. No reformatting, no separate files.

PRINT-READY PDFKDP-OK
PRINT-READY PDFINGRAM-OK
REFLOWABLE EPUBVALID
Included in Typography
i

Perfect paragraph spacing

The engine finds optimal line breaks, producing balanced, professional pages every time.

ii

Optical margin alignment

Punctuation hangs slightly outside the text block so margins appear visually true.

iii

Drop caps & small caps

Elegant oversized chapter openings and true OpenType small caps, rendered with precision.

iv

Scene-break ornaments

Ten decorative designs mark scene transitions, from subtle spacing to ornate fleurons.

Included in Write & Design
i

Live page preview

See fully typeset pages update instantly while you write. No export, no refresh.

ii

12 professional book themes

Typography, spacing, ornaments, chapter styling. Switch in a click.

iii

Automatic chapter numbering

Six formats including Roman numerals. Updates when you reorder.

iv

Write in your language

Interface in English, German, French, Spanish. Manuscript in any language.

Included in Export & Publish
i

Publisher-ready PDF

Print-ready PDFs with embedded fonts and CMYK color. KDP, IngramSpark, and offset-compatible.

ii

One manuscript, every format

Print-ready PDF and reflowable EPUB from the same project. No duplicate files.

iii

Bookshelf & reader

Preview your finished book on simulated Kindle, iPad, and print devices.

iv

Pre-export quality checks

Flags widows, orphans, and layout issues before export. Problems never reach your readers.

Why SapparStudio?

Real differences that matter for your books. Not marketing copy: actual features you'll use, side by side with the category leaders.

SapparStudio FREE Vellum $249.99 Atticus $147
Balanced paragraph spacing Publisher-grade
Specs only say so much.
Open SapparStudio and feel the difference for yourself.
Fine typography controls 22 features
Pre-export quality check Yes
Custom font folders Yes
Font marketplace Coming soon
Live preview Real-time
Print-ready CMYK Yes
PDF + EPUB export Yes
Platform macOS / Windows
Price Free

Free forever.

SapparStudio

Forever. Everything included.

  • Full Sappar typesetting engine
  • PDF & EPUB export
  • 14 professional font families
  • 12 curated book themes
  • Available on macOS & Windows
Get it free

Every detail, included.

The full professional toolkit
Everything you see here ships with Sappar Studio, free forever.

Free forever, no catch
$0.

No watermark, no page limits, no export restrictions. Publish your first book today without paying a cent. Keep all your royalties.

14
Professional book fonts
12
Curated themes
Free updates
2
Native platforms
01 / Always improving
Free updates for life. Every new feature, included.
02 / Typography library
14
Professional book fonts ready to use.
03 / Themes
12 curated book themes.
04 / Platform
macOS Windows
Native desktop speed.
05 / Import
Bring your Word document in one click.
06 / Export
PDF / KDP PDF / INGRAM EPUB CMYK RGB
Print-ready PDFs & EPUBs for every major platform.
07 / Autosave
Never lose your work. Automatic saving as you write.
ALWAYS ON · NO CLOUD REQUIRED
$0 forever No watermarks No page limits No export paywall Free updates for life

The professional tool
for everyone who publishes.

01.

Authors

Write your book and produce a publisher-quality interior without hiring a designer.

02.

Indie publishers

Produce professional interiors in-house. No InDesign expertise required.

03.

Small presses

Consistent, repeatable typesetting across your entire catalog.

04.

Book designers

A typography engine that finally matches what you've been doing manually.

Export ready for
amazon KDP IngramSpark Lulu Draft2Digital Apple Books Barnes & Noble Press

Sappar is part of a growing publishing ecosystem designed for modern authors.

Ready to make something
beautiful?

Professional typesetting for every author. No compromises.

MACOS · WINDOWS · FREE FOREVER

Frequently asked.

Is it really free?+
Yes. Sappar Studio is free forever: not a trial, not a demo, not freemium bait. Full PDF and EPUB export, all 14 fonts, all 12 book themes, every feature. You can write, typeset, and publish an entire book without paying a cent.
What's the catch?+
There isn't one. We built Sappar Studio to be the professional typesetting tool every author deserves. No strings attached.
Is this a subscription?+
No. Download it and it's yours. No monthly fees, no lock-in. Free forever means free forever.
What platforms do you support?+
Sappar Studio runs natively on macOS and Windows.
How does Sappar compare to Vellum & Atticus?+
Sappar offers publisher-grade paragraph layout: the same algorithm used by professional publishers. Unlike Vellum (Mac-only) and Atticus (web-based), Sappar provides real-time typography diagnostics, advanced book interior formatting, and it's free.