EPUB Creation & Repair Services
Professional EPUB creation, validation, troubleshooting, and repair services for authors, publishers, and self-publishing professionals.
Whether you need a brand-new EPUB created from your manuscript or a broken EPUB repaired and validated, Triomarketers can help ensure your digital book meets industry standards and works flawlessly across major reading platforms.
Services Include
✓ EPUB Creation
✓ EPUB Repair & Troubleshooting
✓ EPUB Validation
✓ Metadata Optimization
✓ Navigation & Table of Contents
✓ Accessibility Improvements
✓ Platform Compatibility Testing
Compatible With
✓ Apple Books
✓ Kobo
✓ Draft2Digital
✓ Smashwords
✓ Google Play Books
✓ Library Platforms
✓ Educational Publishers
WHAT IS AN EPUB?
EPUB is the global standard format used by most digital bookstores and reading platforms.
Think of an EPUB as a website packaged into a book.
Unlike PDFs, EPUB files automatically adjust to different screen sizes and reader preferences.
Readers can:
✓ Change font size
✓ Change font style
✓ Read on phones, tablets, eReaders, and computers
✓ Navigate easily through chapters
✓ Switch between light and dark mode
A properly built EPUB provides a smooth and professional reading experience.
COMMON EPUB PROBLEMS
Many EPUB files appear fine at first glance but contain hidden problems.
Common Issues
❌ EPUB fails validation
❌ Rejected by Apple Books
❌ Rejected by Draft2Digital
❌ Font rendering issues
❌ Broken table of contents
❌ Missing metadata
❌ Images display incorrectly
❌ Accessibility failures
❌ Chapter navigation errors
❌ Broken hyperlinks
❌ Strange spacing
❌ EPUBCheck errors
These issues can delay publication and frustrate readers.
OUR EPUB WORKFLOW
Visual 1 – EPUB Creation Process
Creating EPUB Files From Scratch
If you only have:
✓ Word document
✓ Google Doc
✓ Existing manuscript
Triomarketers will create a professional EPUB from the ground up.
Includes
✓ Clean EPUB structure
✓ Semantic HTML formatting
✓ Navigation document
✓ Metadata setup
✓ Cover integration
✓ Internal linking
✓ Image optimization
✓ EPUB validation
Result:
A professional EPUB ready for distribution.
EPUB REPAIR SERVICES
Fixing Broken EPUB Files
Already have an EPUB that isn’t working properly?
Triomarketers will diagnose and repair:
Technical Problems
✓ EPUBCheck errors
✓ Validation failures
✓ Corrupt files
✓ Missing files
✓ Broken CSS
✓ Broken HTML
✓ Packaging errors
Reader Experience Problems
✓ Inconsistent formatting
✓ Navigation issues
✓ Image display problems
✓ Layout problems
✓ Font issues
✓ Accessibility concerns
VISUAL 2 – EPUB Repair Process
Why Validation Matters
A visually attractive EPUB can still fail industry validation tests.
Validation ensures:
✓ Correct EPUB structure
✓ Proper packaging
✓ Industry compliance
✓ Platform compatibility
✓ Better reader experience
Validation tools:
EPUBCheck
Platform-specific testing
Accessibility review
VISUAL 3 – EPUB Validation Graphic
DEVICE COMPATIBILITY TESTING
Every EPUB is tested to ensure proper display across multiple platforms.
Testing Includes
✓ Smartphones
✓ Tablets
✓ Kobo
✓ Apple Books
✓ Google Play Books
✓ Desktop Readers
Goal:
One EPUB
Every Reader
Every Device
VISUAL 4 – Device Compatibility Graphic
ACCESSIBILITY IMPROVEMENTS
Modern EPUB publishing increasingly requires accessibility compliance.
Services can include:
✓ Alternative image descriptions
✓ Improved navigation
✓ Semantic structure
✓ Reader-friendly formatting
✓ Accessibility best practices
Helping more readers enjoy your content.
Self Publishing Authors
Prepare your book for digital distribution.
Publishers
Scale production workflows efficiently.
Educational Organizations
Distribute accessible learning materials.
Businesses
Publish training manuals and digital resources.
Content Creators
Create professional digital products.
Technical Expertise
- Triomarketers formatters understands EPUB structure, validation, and publishing requirements.
- Cumulatively our staff have decades worth of publishing Experience
- Files are prepared with real-world publishing workflows in mind.
- We only prepare documents by hand. No AI tools are used in the formatting process.
- Platform Knowledge
- Experience working with major publishing platforms.
- Problem Solving
Whether creating a new EPUB or repairing a broken one, Triomarketers focuses on delivering a file that works correctly.
Frequently Asked Questions
What files can you convert into EPUB?
Word documents, PDFs, manuscripts, and existing ebook files.
Can you repair a broken EPUB?
Yes. Diagnostic and repair services are available.
Will my EPUB pass validation?
Validation testing is performed before delivery.
Can you fix rejected EPUB uploads?
In many cases, yes. Upload rejection reports can be reviewed and resolved.
Do you support illustrated books?
Yes. Image-heavy EPUBs can be optimized and tested.
Turn Your Manuscript Into a Professional EPUB
Whether you need a new EPUB created or an existing file repaired, I can help you publish with confidence.
Ready to Get Started?
