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Supports: PDF
To convert PDF to EPUB, upload your PDF to our servers and click Convert. The tool extracts the PDF's text, headings, lists, and images and rebuilds them as reflowable EPUB 3 chapters, so the text rewraps to fit any e-reader screen and font size. Download the .epub when it finishes — free, no sign-up, no watermark.
Real result: a fixed-page PDF becomes a Kindle/Kobo/Apple Books-ready ebook you can resize and read in dark mode. Because EPUB reflows text, expect heavy-layout PDFs (magazines, multi-column spreads, forms, scans without OCR) to convert imperfectly — prose-style PDFs convert cleanest.
PDF was designed in 1993 to print and display a page exactly as authored — fixed page size, fixed line breaks, fixed font positioning. That works on paper and on desktop screens, but a 6" Kindle, a phone, or a smartwatch can't reflow PDF text without ugly pinch-zoom and horizontal scrolling. EPUB is an open IDPF/W3C standard built around reflowable XHTML inside a ZIP container, so the text adapts to whatever screen and font size the reader prefers.
.epub files in 2022 and stopped accepting new MOBI uploads in late 2023 (phased out from November 1, 2023, ending December 20, 2023). EPUBs are converted server-side into Kindle's modern KF8/KFX format on delivery.| Property | EPUB | |
|---|---|---|
| Layout model | Fixed page geometry | Reflowable XHTML |
| Best screen size | Letter / A4 / desktop | Any (phone to tablet) |
| Adjustable font size | No (zoom only) | Yes |
| Adjustable font family | No | Yes (reader's choice) |
| Night/dark mode | App-dependent overlay | Native, content-aware |
| Multi-column reflow | Breaks on narrow screens | Single-column reflow |
| Embedded fonts | Always | Optional (CSS @font-face) |
| File size (text-heavy) | Larger | Smaller (no layout data) |
| Standard | ISO 32000 | W3C / IDPF EPUB 3.3 |
| Native on Kindle | Limited | Yes (since 2022) |
| Device / App | EPUB support | Notes |
|---|---|---|
| Apple Books (iOS, macOS) | Native | EPUB 3 with fixed-layout extensions |
| Kobo (all models) | Native | EPUB and EPUB 3 fully supported |
| Barnes & Noble Nook | Native | EPUB primary format |
| Google Play Books | Native | EPUB or PDF upload |
| Amazon Kindle | Via Send to Kindle | EPUB accepted since 2022; converted to KF8/KFX on delivery |
| PocketBook / Tolino / Onyx Boox | Native | EPUB primary; many also read PDF natively |
| Calibre (desktop library) | Native + conversion | Open-source EPUB editor and converter |
| Adobe Digital Editions | Native | EPUB 2/3 with DRM support |
Our converter produces a reflowable EPUB, which is the right choice for novels, reports, articles, manuals, and most text-heavy PDFs. Reflowable means text rewraps to fit the screen; line breaks, page breaks, and column layouts from the original PDF are not preserved verbatim — by design.
If your PDF is a magazine, comic, children's picture book, photo book, or form with pixel-precise positioning, a fixed-layout EPUB (or keeping the file as PDF) is usually a better fit. Fixed-layout EPUB hard-codes each page's geometry and is supported by Apple Books and Kobo but only partially on Kindle.
Works well: novels, non-fiction prose, technical manuals, single-column reports, articles, theses.
Works less well: magazines with multi-column spreads, scanned PDFs without OCR, forms, comics, layout-heavy designed PDFs. For scanned PDFs, run OCR first (in Acrobat, ABBYY FineReader, or Calibre's OCR plugin) so the EPUB contains real text rather than page images.
If you also need other directions, see EPUB to PDF, EPUB to MOBI, PDF to MOBI, or DOCX to EPUB.
No, and that's intentional. EPUB is a reflowable format — text rewraps to fit whatever screen, font size, and orientation the reader chooses. Headings, paragraphs, bold/italic styling, bulleted lists, and inline images carry over. Multi-column layouts collapse to a single column, page numbers and running headers are dropped, and pixel-precise positioning is replaced by CSS flow.
Yes. Amazon's Send to Kindle (web, email, iOS/Android app, Mac/PC desktop app) has accepted EPUB uploads since 2022 and stopped accepting new MOBI uploads in late 2023. Email your .epub to your @kindle.com address or drop it into the Send to Kindle web app; Amazon converts it to KF8/KFX on its servers before delivering to your device. The file must be DRM-free.
Only if the PDF already contains an OCR text layer. A scanned PDF is a sequence of page images; without OCR the converter has no real text to extract, and the resulting EPUB will either be empty or contain those images with no searchable text. Run OCR first (Acrobat Pro, ABBYY FineReader, or a free tool like Tesseract) and then convert the OCRed PDF here. Calibre's conversion docs warn that PDF is a poor source format and that image-only/scanned PDFs produce unreliable results without a real text layer.
Embedded images are extracted and re-referenced inside the EPUB's OEBPS folder. Chapter structure is derived from heading styles and bookmarks when present in the PDF — if the PDF has no heading marks or table of contents, the converter falls back to splitting on page breaks. For best chapter detection, export PDFs from Word, Pages, or LaTeX with real heading styles rather than oversized bold text.
Calibre is the most powerful open-source option and is excellent if you want to tune heuristics, edit metadata, and batch hundreds of files locally. It also has a steep learning curve and requires installing a 250+ MB desktop app. Our online converter is a faster choice when you have a handful of files, don't want to install anything, and are happy with reasonable defaults. Both produce reflowable EPUBs from the same source PDF; results on heavily designed PDFs will be imperfect either way.
Generally no — and you usually don't want them to. EPUB readers prefer to honor the reader's chosen font (system serif, sans-serif, or a dyslexia-friendly face) so the file stays small and accessible. The converter preserves font weights and styles (bold, italic) via CSS, but the actual typeface is left to the e-reader unless you edit the EPUB later in Calibre or Sigil to embed a font.
The usual cause is a PDF that wasn't built from clean text flow. Multi-column layouts, text boxes, footnotes, and headers/footers get read in an unexpected order when flattened to single-column reflow, so paragraphs can interleave or run together. Scanned PDFs without an OCR text layer are the worst case — there is no real text to extract. For the cleanest result, convert prose-style PDFs that were exported from Word, Pages, Google Docs, or LaTeX with real heading styles. If a designed PDF must keep its exact look, keep it as PDF or use a fixed-layout EPUB tool instead.
Not directly in a single click — each PDF converts to its own EPUB. If you need one combined ebook, first use Merge PDF to join the PDFs into one file, then convert that merged PDF to EPUB here.
The free tool handles typical ebook-sized PDFs comfortably. Text-based PDFs are small, so they upload and convert quickly; very large scanned PDFs (hundreds of megabytes) take longer to upload over your connection and are the most likely to hit a practical limit. If a huge scan is slow, downsample or OCR it first, or split the PDF into smaller chunks before converting. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours.
EPUB is the open W3C standard used by Kobo, Apple Books, Nook, and modern Kindles. MOBI is Amazon's legacy Mobipocket-based format, no longer accepted for new Send to Kindle uploads since late 2023. AZW3 (KF8) is Amazon's proprietary follow-up to MOBI, still used internally on Kindle devices but not as a sideloading format. For new conversions in 2026, EPUB is the right target — Kindle accepts it directly and every other major reader treats it as the native format. If you specifically need MOBI for an older Kindle, see PDF to MOBI.