.epub — Electronic Publication
An open, widely-supported ebook format that reflows text to fit any screen size. Used by most e-readers other than Amazon Kindle.
Plain documents are generally low-risk to view. If the format supports macros or embedded scripts, keep them disabled unless you specifically expect and trust them.
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Frequently asked questions
What is a .epub file?
An open, widely-supported ebook format that reflows text to fit any screen size. Used by most e-readers other than Amazon Kindle.
Can I edit a .epub file?
Partially. .epub files can be edited with the right tool (such as Apple Books), but not with just any text editor.
Does having a .epub extension mean the file is safe?
No single extension can guarantee that. Plain documents are generally low-risk to view. If the format supports macros or embedded scripts, keep them disabled unless you specifically expect and trust them. Always consider where the file came from, not just its name.