Reflowable EPUB3

A validated reflowable EPUB3 engineered from a 50-chapter title – hand-finished XHTML, embedded fonts, dual navigation, EPUBCheck 0 errors.
Real ebook cover on a tablet beside a phone showing a reflowable chapter page of the same EPUB3
The same EPUB3 chapter reflows across a phone, a tablet, and a large-screen device
The EPUB opened in Sigil – file structure, hand-edited XHTML source, and chapter navigation
Two navigation layers of the same ebook: the reader's built-in contents drawer and the linked TOC page
Terminal with a real EPUBCheck run: zero fatals, zero errors, zero warnings

About the Client

A self-publishing author whose 50-chapter nonfiction title needed a store-ready ebook edition – the same book our team produced in print and screen-PDF formats, with the EPUB3 built as the third format from the same InDesign source.

Challenge & Solution

We build ebooks from InDesign, Word, or PDF sources – engineered rather than auto-converted:

  • Semantic, per-chapter XHTML structure with a clean spine and metadata
  • Embedded licensed fonts (EB Garamond and Montserrat) with standard font obfuscation
  • The designed cover built in as the opening page
  • Two navigation layers – the reader’s built-in contents and a linked TOC page
  • Validated with EPUBCheck before delivery

Engineered, Not Auto-Converted

What’s under the hood decides whether a store accepts your file. Every book is finished by hand in Sigil: clean semantic XHTML for each chapter, a structured spine, correct metadata, and properly declared embedded fonts. Reflowable EPUB3 then adapts to the device instead of fighting it – readers control the font size, images scale to the screen, and nothing breaks because there is no fixed layout to break.

Results & Deliverables

  • A validated reflowable EPUB3 – the EPUBCheck run shown is real: 0 fatals / 0 errors / 0 warnings
  • Ready for Amazon KDP, Apple Books, Kobo, Barnes & Noble, and Google Play Books
  • Aggregator-ready for Draft2Digital and PublishDrive, including OverDrive library distribution
  • Embedded fonts, built-in cover, and dual navigation throughout
  • EPUB produced from your Word, PDF, or InDesign files – or from your printed book
  • 600+ books produced across fiction, nonfiction, and religious titles

Related services: Document Conversion · Multilingual DTP

Need work built to this standard?

Tell us about your project – files, languages, deadline – and we will reply with a clear quote within one business day.

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Client:
Self-publishing author
Year:
2025
Tools:
InDesign · Sigil
Volume:
50-chapter nonfiction title
Timeline:
2 weeks
Result:
EPUBCheck – 0 errors
WE AREe-Doc Ltd
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Outside these hours – available on request when a team member is free.

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WE AREe-Doc Ltd
Have a question or project?

Email us – we reply within one business day.
OUR HOURSWe Are Open
Mon – Fri: 09:00 – 18:00 EET

Sat – Sun: Closed

Response: within one business day


Outside these hours – available on request when a team member is free.

OUR OFFICEFrom Ukraine, for the World
https://ebook.ltd/wpcontent/uploads/2019/04/imgfootermap.png
OUR SOCIALSLet’s Stay in Touch
Join our network to get tips, updates, and behind-the-scenes stories.

© 2026 Private Entrepreneur Yevhen Ivaniv, trading as e-Doc Ltd.
All rights reserved.

© 2026 Private Entrepreneur Yevhen Ivaniv, trading as e-Doc Ltd.
All rights reserved.