Format Atlas

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EPUB vs DOCX

EPUB is an e-book package for reading apps; DOCX is a word-processing document intended for continued editing. Choose between reader-focused delivery and document editing.

Which format should you choose?

Use EPUB to distribute a reflowable e-book, and DOCX when text, formatting, comments, or other document elements must remain editable. Consider PDF when fixed page layout is required.

Good fit for EPUB

Ebooks, manuals, and digital publications

  • Text-first publications that adapt to reader screens

Good fit for DOCX

Creating editable documents

  • Reports and drafts revised collaboratively

Basic information

FieldEPUBDOCX
Extension.epub.docx
MIME typeapplication/epub+zipapplication/vnd.openxmlformats-officedocument.wordprocessingml.document
Common usesEbooks, manuals, and digital publicationsCreating editable documents
How to openOpen it with an EPUB reader or compatible reading app. Check that the recipient's device or store accepts the file.Open it in Microsoft Word or a DOCX-compatible word processor. For important documents, check fonts, figures, comments, and page breaks in the recipient's environment.
Export or convertWhen converting from DOCX, HTML, or PDF, check the table of contents, reading order, images, links, fonts, and page breaks on target readers.For final distribution, export to PDF. Before and after export, check font substitution, page breaks, links, and image resolution, and retain the editable DOCX separately.

Choose by use case

Text-first publications that adapt to reader screens

Ebooks, manuals, and digital publications

EPUB

Reports and drafts revised collaboratively

Creating editable documents

DOCX

Key point 1

EPUB is an e-book package designed for reading systems.

More on the differences

Key point 2

DOCX preserves editable word-processing content and formatting.

More on the differences

Frequently asked questions

Which format should I send for editing?

Use DOCX when the recipient needs to revise the text or document formatting.

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Related uses and checks

Checking EPUB structure and reading order before handoff

References and specifications