What Is EPUB?
EPUB (Electronic Publication) is the most widely used open eBook file format. Unlike a PDF, EPUB content reflows to fit the screen, so text resizes and re-wraps to suit any device — which is why it’s the standard for eReaders and reading apps.
How is EPUB different from PDF?
A PDF has a fixed layout — every page looks the same everywhere, which is ideal for print and design-heavy documents. EPUB is reflowable — the text adapts to the screen and the reader can change the font size — which is ideal for long-form reading like novels. Choose PDF when layout matters; choose EPUB when comfortable reading on any screen matters more.
What uses the EPUB format?
Most eReaders and eBook stores support EPUB, including Apple Books, Kobo, and Google Play Books. (Amazon Kindle historically used its own formats but now accepts EPUB too.) It’s the default choice for publishing reflowable eBooks.
When should you use a fixed layout instead?
If your document is highly designed — a catalog, magazine, or brochure where the layout is part of the message — a reflowable EPUB can break the design. In those cases a PDF, or a page-turning flipbook made from that PDF, keeps the layout intact while still being easy to read online.
FAQ
Can I open an EPUB file on my phone?+
Yes. Most phones have a built-in or free reading app that opens EPUB files, and the text will resize to fit your screen.
Should I use EPUB or a flipbook for a magazine?+
For a design-led magazine, a flipbook made from your PDF preserves the exact layout and adds page-turning and interactivity. EPUB is better for text-first books where reflowing to the screen is the priority.