What Is EPUB?

EPUB is an e-book file format with the extension .epub that can be downloaded and read on devices like smartphones, tablets, computers, or e-readers. It is a technical standard published by the International Digital Publishing Forum (IDPF). The term is short for electronic publication and is sometimes styled ePub.

Main features of EPUB file format:

• Reflowable document: optimize text for a particular display
• Fixed-layout content: pre-paginated content can be useful for certain kinds of highly designed content, such as illustrated books intended only for larger screens, such as tablets.
• Like an HTML web site, the format supports inline raster and vector images, metadata, and CSS styling.
• Page bookmarking
• Passage highlighting and notes
• A library that stores books and can be searched
• Re-sizable fonts, and changeable text and background colors
• Support for a subset of MathML
• Digital rights management—can contain digital rights management (DRM) as an optional layer

For more technical information, see EPUB Specifications.

⇒ What Is EPUB File Structure

⇐ Introduction to EPUB

⇑ Introduction to EPUB

⇑⇑ EPUB Tutorials