Anyone who has tried to read a PDF on a Kindle, Kobo, or phone knows the pain — tiny text, constant zooming, and pages that don't fit the screen. We built this converter because we believe every document deserves to be readable on every device. CheersPDF transforms your PDF into a reflowable EPUB that adapts to any screen size, and it does it all right here in your browser without uploading a single byte.
Drag and drop your PDF file here
or click to browse — accepts .pdf files up to 100 MB
Smart structure detection turns rigid PDFs into flowing ebooks.
Select any PDF document from your device. Whether it's a book, a report, a research paper, or a manual — CheersPDF can handle it. The file stays on your device; nothing is sent to a server.
Our structure detection algorithm analyzes your PDF to identify chapters, headings, paragraphs, and images. It understands common patterns like "Chapter 1", numbered sections, and bold headings, then organizes the content into a well-structured EPUB with proper chapter breaks.
Your new EPUB file downloads automatically. Open it on any e-reader — Kindle, Kobo, Nook, Apple Books, Google Play Books, or any EPUB-compatible app. The text reflows to fit your screen perfectly.
We built the smartest browser-based PDF to EPUB converter available — and we made it free.
Our algorithm doesn't just dump text into an EPUB. It analyzes font sizes, formatting patterns, and text structure to intelligently identify chapter breaks, headings, and section boundaries — producing an EPUB that feels like a real book.
Images from your PDF are extracted and embedded into the correct chapters of your EPUB. Whether it's diagrams, illustrations, or photographs, they'll appear alongside the relevant text just as they did in the original.
Fine-tune your conversion with options for chapter detection sensitivity, font size, margins, and character encoding. You can even set a custom title and author for the output EPUB metadata.
Your PDF never leaves your device. The entire conversion — text extraction, structure analysis, EPUB generation — happens in your browser. No server is involved, no data is transmitted.
If your PDF appears to be scanned (image-based rather than text-based), CheersPDF will warn you that the output may have limited text content. This transparency helps you understand exactly what to expect.
The EPUB files CheersPDF generates are compatible with all major e-readers and apps: Kindle (via Send to Kindle), Kobo, Nook, Apple Books, Google Play Books, Calibre, and more.
PDF was designed for printing. EPUB was designed for reading. That single difference explains why so many people struggle with PDFs on their e-readers. A PDF has a fixed page size — typically A4 or Letter — and the text is locked to that layout. When you open a PDF on a 6-inch Kindle or a phone screen, you're essentially looking at a shrunken version of a full-size page. The text is tiny, and you end up zooming and scrolling constantly.
EPUB solves this problem with reflowable text. Instead of fixed pages, an EPUB file contains structured content that adapts to whatever screen you're reading on. The text wraps to fit your device, the font size adjusts to your preferences, and the reading experience is dramatically better than squinting at a PDF.
CheersPDF creates reflowable EPUBs, which are ideal for text-heavy documents like books, papers, and reports. Reflowable EPUBs let the reader control the font size, line spacing, and margins. However, documents that rely heavily on precise layout — like magazines, comic books, or design portfolios — are better kept in PDF format since their visual layout is essential to the content.
Our converter works best with text-based PDFs where the text is selectable (not scanned images). If your PDF was created from a word processor, a LaTeX document, or an ebook authoring tool, it will convert beautifully. Scanned PDFs — essentially images of printed pages — will have limited text extraction since OCR is not yet supported.
CheersPDF uses a sophisticated structure detection algorithm that analyzes font sizes, text patterns, and formatting to identify chapter boundaries. It can recognize common patterns like "Chapter 1", "Part I", numbered headings, and bold section titles. You can adjust the detection sensitivity in the conversion settings — choose "Aggressive" to catch more headings, or "Conservative" if the automatic mode is creating too many chapter breaks.
You can try, but results will be limited. Scanned PDFs contain images of text rather than actual text data. Since CheersPDF doesn't currently include OCR (Optical Character Recognition), scanned pages will have little or no extractable text. CheersPDF will detect when a PDF appears to be scanned and warn you about this. For best results, use PDFs where the text is selectable — these are sometimes called "digital" or "born-digital" PDFs.
Yes. CheersPDF extracts images from your PDF and embeds them into the appropriate chapters of the EPUB. Diagrams, illustrations, graphs, and photographs are all preserved at their original quality. Each image is placed in the chapter where it originally appeared in the PDF, maintaining the reading flow.
Yes, with one extra step. Kindle doesn't natively support EPUB files, but you can use Amazon's free "Send to Kindle" feature to email the EPUB to your Kindle device. Amazon will automatically convert it to their format. Alternatively, you can use apps like Calibre to manage the transfer. All other major e-readers — Kobo, Nook, Apple Books, Google Play Books — support EPUB natively.
CheersPDF supports PDF files up to 100 MB. Since the entire conversion happens in your browser, very large or complex PDFs may take longer to process depending on your device's processing power. For documents over 50 MB, we recommend using a desktop computer for the best experience.
All CheersPDF tools run in your browser. No uploads. No servers. No sign-ups.