Professional eBook Formatting Services

Getting your manuscript accepted by Amazon, Apple Books, Kobo, and every other major platform takes more than converting a Word document — it takes expert ebook formatting built to each retailer’s exact technical requirements. TrioMarketers hand-formats every ebook we work on, with no automated conversion tools and no outsourcing, so your file is right the first time.

What Professional eBook Formatting Actually Involves

DIY conversion tools are built to produce a file — not necessarily one that passes retailer review, displays correctly across every device, or meets accessibility standards. Professional ebook formatting means:

• Clean, semantic structure built by hand, not auto-generated from a Word export full of legacy formatting artifacts
• A working, navigable table of contents that functions correctly in every reading app
• Accessibility compliance, including proper alt text, reading order, and structure that meets current WCAG standards — see our full guide to accessible ebook formatting
• Retailer-specific formatting, since Amazon KDP, Apple Books, Kobo, and other platforms each enforce their own technical requirements
• Validation before delivery, so your file is checked against current standards before it ever reaches you

Formats We Format Into

EPUB — the current industry-standard format, required by nearly every major retailer today. See our full EPUB 3 guide for what makes this format different from its predecessor.

MOBI (legacy) — while Amazon retired MOBI for new Kindle uploads in 2025, we still support authors who need it for backlist titles or older devices. See our guide to editing MOBI files.

PDF — for print-ready interiors and platforms that require fixed-layout files.

Platforms We Format For

Every platform has its own quirks, and we format to each one’s specific requirements:

• Amazon KDP
• Smashwords / Draft2Digital — including their notoriously strict “Meatgrinder” conversion requirements (see our formatting do’s and don’ts)
• Lulu
• XinXii
• Pothi
• Tradebit
• Apple Books, Kobo, Google Play Books, and IngramSpark

Why Choose Professional eBook Formatting Over DIY

Auto-converted files are the single most common cause of rejected uploads and broken formatting once a book goes live. Common issues we fix that DIY tools routinely miss:

• Missing alt text on images (a hard requirement, not optional) — see our breakdown of common EPUB validation errors
• Broken navigation and table of contents links
• Legacy HTML attributes left behind by Word’s export process
• Inconsistent styling between chapters
• Images and text that don’t reflow correctly across devices

We guarantee your book will be accepted by the aggregators of your choice — because we test and validate every file before delivery, not after a rejection.

Our Process

1. 1. Send us your manuscript — Word, InDesign, PDF, or scanned documents all work.
   2. We quote based on length, complexity, and target platforms.
   3. We hand-format your file, typically within 3–4 days depending on complexity.
   4. You review and request any formatting edits before final delivery.
   5. We deliver your finished files, plus the original source documents.

Frequently Asked Questions

What makes professional ebook formatting different from using a conversion tool? Automated tools produce a technically valid file, but not necessarily one that passes retailer review or displays correctly everywhere. Hand-formatting catches the structural and accessibility issues that automated conversion routinely introduces.

How much does professional ebook formatting cost? Pricing depends on manuscript length, complexity, image count, and which platforms you’re targeting. Request a free quote with your manuscript details for an accurate price.

How long does ebook formatting take? Generally 3–4 days depending on complexity and current workload — novels format faster than heavily illustrated or technical books.

Which file formats can you convert from? .doc, .docx, InDesign, Photoshop, and PDF are most common, but we can generally work from whatever source documents you have available.

Do you guarantee retailer acceptance? Yes — we guarantee your book will be accepted by the aggregators of your choice.