A harbor. A protest. A turning point.
On December 16, 1773, protesters boarded ships in Boston Harbor and dumped tea into the water. They opposed taxation without colonial representation.
KITABOOFluid360
From fixed PDF to reflowable eBook, using AI.
KITABOO Fluid360 is a cloud-based authoring tool for publishers. Start with a PDF, InDesign, Word or ePub file. AI structures it. You edit it, enrich it and publish an accessible, interactive eBook.
- 20 million pages converted
- WCAG 2.2 checks built in
- Reflowable output within minutes
- No downloads or installs
FLUID360Interactive concept · sample chapter
YOUR CONTENT, IN MOTION
Start with the content you own.
PDF, InDesign, Word or ePub. Explore this prepared chapter to see the transformation.
PDFINDDDOCXePub
SOURCE / HISTORY-07.PDF01 / 04
Illustrative workflow, not a live Fluid360 account. No AI extraction or full accessibility audit is performed here.
These publishers use the KITABOO platform
- 1.5M+eBooks delivered
- 25+Countries served
- 35M+Daily API calls
- 99.97%Guaranteed uptime
Illustrative imageAuthoring inefficiency is costing you.
Digital book creation shouldn’t feel like damage control. Yet most publishers using traditional eBook creation software face fragmented, error-prone workflows that drain resources and delay time-to-market.
- 20Mpages converted
- 1.5M+eBooks delivered
- WCAG 2.2compliant output
Manual work
Manual, time-consuming processes hold up every title.
Errors across formats
Inconsistent styling across formats and multi-language content errors.
Hard parts left late
Late or missing WCAG compliance, and complex MathML conversion.
Two modules, one workflow.
Fluid360 Editor handles AI structuring. Author lets you craft, enrich and publish: a collaborative authoring platform built for teams.
Fluid360 Editor
- AI-powered content extraction from PDF and InDesign
- Automated reading order correction
- Intelligent tagging and structure detection
- Auto-generated alt text for images
- MathML handling and equation support
Fluid360 Author
- Rich inline editing environment
- Interactive widgets and components
- Custom styling and brand theming
- Real-time WCAG compliance checking
- Multi-language support and collaboration
In their own words
Don’t take our word for it.
What publishers say about the KITABOO platform.
G24.4/5
“We particularly appreciate KITABOO's ability to deliver accessible books in both Fixed and Reflowable formats to our customers. We also highly value the KITABOO team's proactive approach and dedication to meeting and exceeding accessibility standards.”
Erik TufvessonTech Lead – Digital Utveckling, Studentlitteratur AB
01 / 03
Why reflowable ePub beats fixed layout.
Reflowable ePub adapts to the screen and the reader. Try it below.
FIXED PDF
FIELD NOTES / 01Room for
Room for
every reader.
A great reading experience makes room for every reader. On a smaller screen, words wrap into new lines. When the text grows, the content finds its own space—without changing the story.
THE DIGITAL EDITION · 24A fixed page keeps its arrangement.
REFLOWABLE EPUB
FIELD NOTES / 01
Room for every reader.
A great reading experience makes room for every reader. On a smaller screen, words wrap into new lines. When the text grows, the content finds its own space—without changing the story.
Text wraps to fit the reader’s settings.
- Device adaptability
Reflowable ePub adapts to screen size and orientation, on smartphones, tablets, eReaders and desktops. Fixed layout may not display well on smaller screens.
- Reader customization
Readers can adjust font size, choose fonts and change margins. Fixed layout doesn’t offer the same choice.
- Accessibility
Adjustable text and screen-reading tools make it easier for readers with different needs.
- Search and highlight
Consistent, easy text search and highlighting.
- Cost and efficiency
Often more cost-effective to create than fixed layout, which needs more design work and testing across devices.
What Fluid360 takes care of in conversion.
Automate and scale your static PDFs to reflowable ePubs. Upload your PDF or InDesign fixed-layout content and get ePub, XML or HTML back.
Math stays math
Equations are converted to MathML, keeping your mathematical content intact.
Multi-column layouts
Two- and three-column layouts keep their original structure and visual appeal.
Tables, lists and headers
Tables, lists, headers and nested lists keep their hierarchy and order.
Images and captions
Visual elements stay well aligned with the text around them.
AI alt text
Alt text for images is generated automatically, for all readers.
Automated tagging
Content is tagged from InDesign tag information, in line with accessibility guidelines.
Accessibility built in, not bolted on.
Fluid360 includes a built-in WCAG 2.2 AA checker that validates accessibility during authoring, not after. Compliance is part of every step.
- WCAG checker
Real-time compliance checking while you author.
- Reading order and tags
Automated reading order correction and intelligent tagging.
- Universal content
Content that is more universally accessible, on multiple devices.
A content authoring platform for publishing at scale.
It redefines how publishers create, structure and deliver digital textbooks.
- AI-assisted extraction
Start from any source: PDF, InDesign or legacy content.
- Inline editing
Edit content directly where it lives.
- Widgets and components
Build interactive learning experiences.
- Custom styling
Maintain brand and design consistency.
- Version control
Collaborative authoring without conflicts.
Higher efficiency, lower costs.
The digital authoring tools that turn content production from a liability into a competitive advantage.
Faster time-to-publish
AI-assisted automation slashes production timelines.
Consistent standards
Quality across catalogs, languages and formats.
Built-in accessibility
WCAG compliance from day one.
Scalable production
Handle high volumes without scaling headcount.
Fewer rework cycles
Intelligent validation gets it right the first time.
Lower costs
Eliminate inefficiencies that drain resources.
See KITABOO Fluid360 in action
Your content’s transformation journey.
Watch your source files evolve into fully accessible, interactive eBooks.
- Upload your content
Start with any PDF, InDesign, Word or ePub file.
- Source content
Your starting point: PDF, INDD, DOCX or ePub.
- Fluid360 Editor
AI-powered structuring.
- Published eBook
Distribution ready.
Conversion and ingestion in practice
Case studies from publishers and aggregators.
Answers
Frequently asked questions
What is KITABOO Fluid360?
An AI-powered eBook authoring tool that lets publishers and enterprises create, structure and publish interactive, WCAG-compliant digital books from any source format, all from one cloud-based tool.
What file formats does Fluid360 support?
You can import PDF, InDesign (INDD/IDML), Word (DOCX) and ePub files. The AI extracts and structures the content automatically. Reflowable output can be ePub, XML or HTML.
Is Fluid360 WCAG compliant?
Yes. It includes a built-in WCAG 2.2 AA checker that validates accessibility during authoring, not after.
How does it differ from traditional eBook formatting software?
It combines AI-assisted content extraction, interactive widget libraries, real-time collaboration and built-in accessibility checking in one platform, so you don’t need several disconnected tools.
Can multiple team members work on the same project?
Yes. Fluid360 supports version control and multi-user workflows, so teams can work together without conflicts.
Does it support interactive content?
Yes. The Author module includes 20+ interactive widgets, such as videos, quizzes, hotspots and audio.
Is it suitable for large-scale publishing?
Yes. With 1.5M+ eBooks delivered, 35M+ daily API calls and 99.97% uptime, it is built for enterprise-scale digital textbook authoring.
What kind of publishers use Fluid360?
K-12 publishers, higher education providers, trade publishers, training companies and associations.
Is it cloud-based or on-premise?
Fully cloud-based, with no downloads or installations. Access it from any browser, anywhere.
What is fixed layout?
A fixed layout document has a set arrangement on the page that doesn’t change with screen size, orientation or reader preferences. It suits highly designed content such as illustrated books, children’s titles, cookbooks and comics, where the relationship between text and image carries meaning.
What is reflowable ePub?
A layout that adapts to the screen and the reader’s preferences. Text rewraps, font size can change and the reading experience adjusts to the device. It is the right choice for text-led titles, and the format most accessibility tools expect.
Which is better, ePub or PDF?
ePub is generally better for eBooks, with reflowable text and adaptability to different screens, and it works better with screen-reading software. PDF is better for fixed-layout documents with precise formatting. The choice depends on the content and how it will be used.
Is ePub safer than PDF?
Yes. ePub supports DRM, which encrypts the content so it can’t be opened without a proper access key. That protects it from theft and unauthorized sharing.
How long does it take to convert a PDF to ePub?
It depends on file size and complexity. Fluid360 gets you reflowable output within minutes.
Can you convert a scanned PDF to ePub?
Yes. Fluid360 can extract and convert the text from a scanned PDF.
How do I get started?
Request a demo using the form on this page. We’ll walk you through Fluid360 and help you see how it fits your publishing workflow.
Get started
See Fluid360 on your own content.
Book a 30-minute walkthrough. We’ll tailor it to your catalog.
- 1
Tell us which titles you’d start with.
- 2
We show you Fluid360 in 30 minutes.
- 3
You see your content in reflowable form.
G24.4/5FERPAWCAG 2.2 AAGDPR
All other products of KITABOO
- For PublishersKITABOO eReader Studio
DRM-protected, white-label eReader with content management and distribution controls.
- For PublishersKITABOO TE+
AI-powered Teacher’s Editions with answers, guidance and instructional resources.
- For CompaniesKITABOO Training Hub
Branded training platform with courses, assessments, certifications and analytics.
- For CompaniesKITABOO Access
AI-powered accessibility audits, alt-text generation and content remediation.