A student downloads a required textbook chapter as an EPUB from their university library's OER collection. Their campus printing system only accepts PDF. They try opening the EPUB in Adobe Reader. It does not open. They try the Print option in their ebook reader app. The output is either broken or blocked. The standard advice is to install Calibre, a free ebook management program, configure the conversion settings, and export from there. For a single chapter, that is a lot of setup for a one-time task.
Researchers, educators, and anyone needing to annotate, print, or share ebook content in a universally readable format run into the same wall. EPUB is excellent for reading on devices but not for printing, distributing, or opening in a standard PDF viewer. This tool converts EPUB files to PDF entirely in the browser using JSZip. Your ebook file is never uploaded to any server.
How It Works
- Upload your EPUB file by dragging it onto the upload area or clicking to browse. JSZip unpacks the EPUB archive in the browser, parses the book structure, and displays the cover image and chapter list immediately. The chapter panel shows every chapter detected in the file, with options to select all or choose specific chapters for the conversion.
- Configure PDF settings before converting. Choose page size from A4, US Letter, A5, or B5. Set font size (11px through 17px), line spacing (compact 1.5 through airy 2.2), and font family (Georgia, Arial, Times New Roman, or Courier New). Set a custom text color. Toggle the cover page, chapter headers, and page numbers on or off. These settings let you match the output to a specific reading or printing requirement rather than accepting a single fixed style.
- Convert and download by clicking Convert to PDF. The tool works through five stages: Reading EPUB, Parsing Book, Rendering Text, Building PDF, and Done. The chapter HTML is rendered with your chosen font and spacing settings and built into a paginated PDF using PDF-Lib. Download the file immediately on completion.
Compatibility & Support
Supported Input and Output
- Input: EPUB 2 and EPUB 3 files (.epub)
- Output: PDF with text, headings, paragraphs, and inline images from the EPUB source
- Page sizes: A4 (210x297mm), US Letter (8.5x11in), A5 (148x210mm), B5 (176x250mm)
- Font families: Georgia (serif), Arial (sans-serif), Times New Roman, Courier New
- Optional elements: Cover page, chapter headers, page numbers
- Chapter scope: All chapters or a custom selection
Unsupported Formats
MOBI, AZW, and KFX (Amazon Kindle formats) cannot be uploaded directly; convert them to EPUB first using Calibre before using this tool. Fixed-layout EPUB files used for comics, manga, and heavily designed picture books may not convert cleanly since the renderer processes flowing text rather than reproducing visual design layouts. DRM-protected EPUB files with content restrictions cannot be processed.
File Size Limits
All processing runs in-browser via JSZip with no server upload, so no external file size cap is imposed. Large EPUB files with many embedded images take longer to parse and render. Processing time scales with chapter count and image density, but completes fully on modern browsers without restriction.
Who Should Use This Tool?
- Students: A student needing to print an OER textbook chapter downloaded as EPUB from their library can convert the specific chapters they need to A4 PDF with page numbers enabled, ready for printing at the campus print center without installing any additional software.
- Freelancers & Designers: A technical writer delivering documentation in EPUB format can convert it to a fixed-layout PDF with Georgia font and 1.8 line spacing for clients who need to review it in Acrobat or a corporate document management system that does not support EPUB.
- Office Professionals: An HR team that produces onboarding guides as EPUB for ereader distribution can convert the same file to PDF for staff who prefer reading and annotating on desktop PDF viewers or who need a printed copy.
- Developers: A developer building an ebook distribution platform can use this tool to generate print-preview PDFs from EPUB source files for quality-checking chapter formatting, image placement, and heading structure before publishing to end users.
Key Features
Here's what separates this tool from generic alternatives:
No Server Upload
JSZip unpacks and processes the EPUB entirely in your browser. Ebooks containing proprietary content, personal writing, or academic research never transfer to any external server.
Per-Chapter Selection
Select specific chapters rather than converting the whole book. Convert only the chapters relevant to a research topic, assignment, or review session without generating a 300-page PDF from a full-length novel.
Four Font Family Options
Georgia, Arial, Times New Roman, and Courier New give you control over reading style in the output PDF. Academic documents suit Georgia or Times New Roman; technical documentation often reads better in Arial or Courier.
Four Page Sizes Including A5 and B5
A4 and US Letter cover most printing needs, but A5 and B5 options are useful for compact reading PDFs, digest-sized print layouts, and ebook formats designed for smaller page dimensions.
Line Spacing and Font Size Control
Three line spacing options and four font size settings give you a readable, printable PDF rather than a cramped text dump. Airy spacing at 15px is far easier to read on printed pages than the default compact layout.
Cover, Headers, and Page Numbers Toggle
Include the cover page, show chapter title headers, and add page numbers independently. Useful for academic submissions where page numbers are required but cover images are not appropriate for the context.
Why This Tool Beats the Alternatives
- No account, email, or signup required at any point.
- No watermarks added to the output PDF.
- No server upload; ebook content stays in the browser throughout conversion.
- Chapter selection lets you convert specific sections rather than the full book.
- Four font family options, four page sizes including A5 and B5, and line spacing control; most free online converters apply a single fixed style.
- No Calibre installation required for a standard conversion task.
Pro Tips
- For print output intended for physical reading, use 15px or 17px font size with 2.2 line spacing and A5 page size. This produces a compact, readable printed booklet format that is easier to read than a full A4 page densely packed with 11px text.
- If the converted PDF is much larger than expected, it is likely because the EPUB contains many high-resolution embedded images. Run the output through the Compress PDF tool after conversion to reduce file size significantly without visible quality loss at normal reading distances.
- For academic or professional submissions where only specific chapters are relevant, use the chapter selection panel to pick only those chapters before converting. A 20-chapter technical book converted in full can produce a 200-page PDF; selecting only the three chapters you need produces a focused, submittable document in seconds.
Upload your EPUB, choose your chapters and formatting options, and download a clean, print-ready PDF in seconds. If you need to go in the other direction and convert a PDF back to EPUB for ereader use, the PDF to EPUB converter handles that in the same browser-based workflow.