Turn a PDF into a reflowable EPUB with chapters, for an e-reader or phone - here in this tab, with nothing uploaded.
PDFs people turn into ebooks are papers, manuals and manuscripts - often unpublished or private. The text is pulled out and rebuilt as an EPUB in your browser; the PDF goes nowhere.
No - and that is the point. A PDF has fixed pages; an EPUB reflows to fit any screen and text size. Headings, paragraphs and chapters are kept; the page layout is not.
This version brings the text across, with headings worked out from the type size. Images and complex tables are left out, so it works best for books and documents that are mostly text.
The PDF is probably a scan: pictures of pages, with no text inside. That needs OCR, which this tool does not do.
No. The file is opened by your browser, in this tab, and the new file is made here too. Nothing is sent to a server, so there is no copy of your book anywhere else.