EPUB file format
| Extension | .epub |
| Category | books |
| Programs | FBReader Sumatra PDF CoolReader STDU Viewer Calibre Adobe Digital Editions Sony reader Comic Book Reader QuarkXPress |
| Description | .epub (Electronic Publication) The .epub file format is a widely used and freely available eBook standard, designed by the International Digital Publishing Forum (IDPF). EPUB files are designed for reflowable content, meaning that the text display can be optimized for the particular display device used by the reader of the EPUB-formatted book. It allows for the embedding of fonts, images, and other media necessary for a full multimedia experience, and is compatible with many e-readers and reading apps. This format is popular for digital books because it's capable of adapting to different screen sizes and supports features like bookmarking, text highlighting, and note-taking. |
| Technical details | The `.epub` (electronic publication) format is a free, open eBook standard with these features: - **Standardization**: Maintained by the International Digital Publishing Forum (IDPF), current version EPUB 3.2. - **Reflowable Content**: Adjusts text to various screen sizes and resolutions, unlike fixed-layout PDFs. - **HTML5 and CSS3 Support**: Enables rich formatting and layout, including fixed-layout content. - **Multimedia Integration**: Supports audio, video, and interactive elements. - **Global Language Support**: Accommodates vertical writing and right-to-left reading for languages like Japanese, Arabic. - **Accessibility**: Strong support for accessibility features, including screen reader compatibility. - **DRM Support**: Can be DRM-protected, but DRM-free versions are also common. - **Zip Compression**: Comprises a compressed archive of HTML files, images, stylesheets, using ZIP compression. - **Metadata**: Includes bibliographic details like author, title, publisher, stored in XML. - **Backward Compatibility**: EPUB 3 is backward compatible with EPUB 2. - **File Structure**: Contains a manifest file, standard navigation file, content files (HTML/CSS), and optionally multimedia files. - **Reading Systems Support**: Supported by various e-readers, desktop, and mobile apps. - **SVG Support**: EPUB 3 supports Scalable Vector Graphics for high-quality images and interactive elements. EPUB is a preferred format in digital publishing for its adaptability, device compatibility, and support for complex layouts and interactivity. The EPUB format is favored in the digital publishing industry for its versatility, compatibility across a wide range of devices, and its ability to support complex layouts and interactive features. Its open standard nature ensures that it continues to evolve with advancing technology and industry needs. |
| MIME type | application/epub+zip |
epub converter
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