| Electronic Publication (EPUB) | … |
|---|---|
| Filename extension | .epub |
| Internet media type | application/epub+zip |
| Magic number | PK\x03\x04 (Zip) |
| Developed by | International Digital Publishing Forum (IDPF) |
| Initial release | September 2007 |
| Latest release | 3.3 May 25, 20231 |
| Type of format | e-book file format |
| Contained by | OEBPS Container Format (OCF; Zip) |
| Extended from | Open eBook, XHTML, CSS, DTBook |
| Standard | ISO/IEC TS 30135 |
| Open format ? | Yes |
| Website | w3.org/epub3 |
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Footnotes
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“EPUB 3.3 specification”. IDPF. Retrieved May 27, 2023. ↩