Transform fixed A4 PDF books and lecture notes into reflowable EPUB 3.0 files with adjustable font sizes for e-readers and phones.
Reading a two-column A4 PDF textbook or novel on a smartphone or e-reader means constant pinching and horizontal scrolling. Our Convert PDF to EPUB tool extracts your document text and packages it into a standard, reflowable EPUB 3.0 eBook where lines wrap naturally at any font size or screen width. You can split chapters automatically by detecting large headings—or every page or every five pages—and optionally embed the first PDF page as a high-resolution cover image, all processed privately inside your web browser.
PDF pages have a fixed layout made for A4 paper, whereas EPUB text is reflowable and adapts automatically when you increase the font size on small screens.
The generated `.epub` file works with Apple Books, Google Play Books, Kobo, PocketBook, Calibre, and Amazon Kindle (via Send to Kindle).
Reflowable EPUB requires a selectable text layer; if your PDF is a camera scan, run it through our PDF OCR tool first to extract the text.