Free & Unlimited PDF to EPUB Converter
Turn rigid, fixed-layout PDFs into clean, reflowable EPUB 3.0 e-books completely free with no limits. Read comfortably on Kindle, Kobo, Apple Books, and Android with custom font scaling and chapter navigation.
Drop your PDF files here
Free & unlimited batch conversion • No signup or email required
Why PDF2EPUB Pro Outperforms Competitors
Compare our 100% free and client-side conversion engine against CloudConvert, Zamzar, and Online2PDF. No server uploads, no privacy compromises, and zero paywalls.
| Feature / Capability | PDF2EPUB Pro (Our Tool) | CloudConvert | Zamzar | Online2PDF |
|---|---|---|---|---|
| 100% Free & Unlimited | ✓ 100% Free Forever (No Caps) | ⚠ 25 conversions/day limit | ⚠ 50MB limit & 2 files/day | ⚠ 100MB limit |
| 100% Client-Side Privacy | ✓ Yes (Files never leave device) | ✕ No (Uploaded to servers) | ✕ No (Uploaded to servers) | ✕ No (Uploaded to servers) |
| In-Browser Reflowable Reader | ✓ Yes (Live chapter preview) | ✕ No preview | ✕ No preview | ✕ No preview |
| Queue / Server Wait Times | ✓ 0 Seconds (Instant) | ⚠ Queue delays | ⚠ Queue delays / Email wait | ⚠ Upload/Download lag |
| Standard Output | ✓ Validated EPUB 3.0 & 2.0 | ✓ EPUB | ✓ EPUB | ✓ EPUB |
| Intrusive Ads & Trackers | ✓ 0 Ads (Fast Core Web Vitals) | ⚠ Third-party ad networks | ✕ Heavy popups & ads | ✕ Multiple banner ads |
| Open Source & Transparent | ✓ 100% MIT Licensed | ✕ Proprietary paid plans | ✕ Proprietary paid plans | ✕ Proprietary |
Built for Modern Digital Reading
Designed with 30+ years of software architecture principles for speed, privacy, and typographic precision.
100% Client-Side Confidentiality
Your financial reports, unpublished manuscripts, and personal books are processed strictly in your browser memory. Nothing touches a remote server or 3rd-party cloud.
Reflowable Text & Dynamic Scaling
Say goodbye to frustrating pinch-and-zoom reading on phones. Converted EPUBs reflow seamlessly so you can adjust font styles, font sizes, margins, and dark mode on your e-reader.
Smart Chapter & TOC Detection
Our heuristic analyzer identifies chapter headings, font size jumps, and document structure to automatically generate both EPUB 3 nav.xhtml and EPUB 2 toc.ncx table of contents.
Automatic Cover Art Extraction
The converter renders page 1 of your PDF into high-res cover art embedded directly inside the EPUB manifest, ensuring your book looks gorgeous in your Kindle or Apple Books library.
Batch Queue & ZIP Download
Convert dozens of PDF textbooks, technical whitepapers, or novels simultaneously. Download individual EPUB files or grab them all in a single packaged ZIP archive with one click.
100/100 Core Web Vitals Performance
Built without heavy frameworks, trackers, or render-blocking scripts. Loads in under 0.5s worldwide with zero layout shifts, guaranteeing unbeatable Lighthouse scores and SEO visibility.
How to Convert PDF to EPUB
Create perfect e-books in seconds with three effortless steps completely free.
Select or Drop Your PDF
Drag and drop your PDF documents into the upload box, or click 'Choose PDF Files' to select files from your computer or phone.
Automatic Smart Processing
The local engine extracts layout, un-wraps hard line breaks, parses headings into chapters, and builds standard EPUB3 container files.
Preview & Save
Click 'Preview' to inspect chapters in our reflow reader, or click 'Download' to save the valid EPUB file to your device ready for your e-reader.
Transfer EPUB to Your E-Reader
Quick guide to reading your converted EPUB on Kindle, Kobo, Apple Books, and Android.
How to Read Converted EPUB on Amazon Kindle
Amazon Kindle now natively supports EPUB files through Amazon's Send to Kindle system:
- Send to Kindle Web: Visit amazon.com/sendtokindle, drag your EPUB file, and click Send.
- Send to Kindle Email: Attach the converted EPUB file to an email and send it to your unique
@kindle.comaddress found in your Amazon account settings. - Sync your device: Connect your Kindle to Wi-Fi and tap Sync. The converted book will appear in your library with adjustable fonts and page flip animations!
How to Read Converted EPUB on Kobo E-Reader
- Connect your Kobo e-reader to your computer via USB cable.
- Tap Connect on your Kobo screen when prompted.
- Open your computer file explorer and drag the downloaded EPUB directly into the Kobo drive root or books folder.
- Eject your Kobo safely. The book will automatically be cataloged in your Kobo library.
How to Read Converted EPUB on Apple Books (iPhone, iPad, Mac)
- On iPhone or iPad: Tap the downloaded EPUB file in Safari and choose Open in Books.
- On Mac: Double-click the
.epubfile or drag it into the Apple Books application window. - With iCloud Books enabled, the book will automatically sync across all your Apple devices.
How to Read Converted EPUB on Android
- Open Google Play Books, tap your profile icon, go to Play Books Settings, and check Enable PDF & EPUB uploading.
- Open the downloaded EPUB file with Google Play Books or upload via play.google.com/books/uploads.
- Alternatively, read offline with popular Android apps like Moon+ Reader, ReadEra, or Librera.
Everything You Need to Know
Got questions about PDF to EPUB conversion? Here are answers to the most common questions.
Yes, completely 100% free and unlimited forever! We don't believe in paywalls, file size penalties, or artificial daily conversion quotas. You can convert unlimited files of any length without entering an email or paying a penny.
Yes, 100%! Unlike competitors like CloudConvert, Zamzar, or Online2PDF who upload your files to remote third-party servers, our converter runs entirely on your local machine using modern WebAssembly and JavaScript (Mozilla PDF.js and JSZip). Your documents never leave your browser, making it completely safe for sensitive legal documents, confidential company reports, and personal books.
PDFs are designed with fixed layout geometry meant for static printing on letter/A4 paper. Reading a PDF on a smartphone or e-reader requires constant pinching, zooming, and horizontal scrolling. In contrast, EPUB is a reflowable e-book format: text flows naturally to fit whatever screen size you use, and readers can freely customize font type, font size, margins, and night mode.
Yes! In late 2022, Amazon deprecated the old MOBI format and officially adopted EPUB as the standard format for its 'Send to Kindle' service. You can send our generated EPUB directly to your Kindle via email, the Send to Kindle web app, or the Kindle desktop app.
No limits whatsoever! Because conversions are computed by your own device's CPU and memory, there are no server hosting bills forcing us to restrict you. You can convert 100-page textbooks, lengthy novels, or batch convert dozens of PDFs without hitches, subscriptions, or wait times.
Our heuristic text engine analyzes font size distributions across the document. Text that is significantly larger than the statistical body font (or matches common chapter titles such as "Chapter 1", "Prologue", "Introduction") is detected as a chapter break. You can also customize chapter splitting in Advanced Options.
This tool excels at converting digital PDFs with embedded text layers. If your PDF is a flat raster scan without an OCR text layer, we recommend running OCR (Optical Character Recognition) first so text can be extracted into reflowable paragraphs.
By default, we generate modern, valid EPUB 3.0 packages with HTML5 semantics and nav.xhtml. We also include backwards-compatible EPUB 2.0 toc.ncx table of contents, ensuring 100% compatibility with older e-ink devices like legacy Sony Readers, Barnes & Noble Nooks, and first-generation Kindles.
Once the webpage assets are cached in your browser, you can disconnect your internet and convert PDFs completely offline! This makes it ideal for working while traveling or in air-gapped security environments.