Convert EPUB to PDF
Turn a reflowable e-book into fixed pages for printing. Why this is the wrong direction for e-readers, and what happens to the table of contents.
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EPUB and PDF sit at opposite ends of a single design decision: whether text should adapt to the screen or stay exactly where the author put it.
Reflowable versus fixed
An EPUB is essentially a small website in a zip file — HTML and CSS with a manifest. It has no pages. Text reflows to fit whatever screen is displaying it, which is why you can change the font size on an e-reader and the book simply re-paginates around your choice.
A PDF has pages, decided once at creation time. Converting EPUB to PDF therefore means choosing a page size and font size on the reader's behalf and baking them in permanently.
When this is the right call
- Printing. You cannot hand a reflowable file to a printer; something has to decide where the pages break.
- Fixed citation. Book clubs, classrooms, and reading groups often need stable page numbers so everyone can refer to the same place. EPUB has no page numbers to cite.
- Annotation in PDF tools. If your workflow is built on PDF highlighting and margin notes, a PDF is what you need.
- Archival simplicity. One self-contained file that will render identically in twenty years.
When it is the wrong call
Reading on a phone or a small e-reader. A PDF laid out for A4 or US Letter on a six-inch screen means either squinting at tiny text or panning around a zoomed page for every paragraph. This is the most common regret with this conversion. If your destination is a Kindle or Kobo, convert to MOBI or AZW3 instead, or just send the EPUB — most modern e-readers handle it directly.
What changes in the output
- Internal links mostly survive. The table of contents typically becomes clickable PDF bookmarks, and footnote links usually still jump correctly.
- Reader font choice disappears. Whatever size the conversion picked is what everyone gets, permanently.
- Embedded fonts are honoured where the EPUB supplied them; otherwise a default serif is substituted.
- Images stay put but may land awkwardly relative to page breaks, since the original had no page breaks to design around.
- Page count is unpredictable. A 300-page paperback might convert to 180 or 450 pages depending on the layout chosen.
DRM-protected books cannot be converted
An EPUB purchased from most commercial stores is encrypted. Conversion tools cannot read the contents, and the attempt will simply fail. This is a deliberate restriction, and stripping it is illegal in many jurisdictions regardless of whether you paid for the book. Only DRM-free EPUBs — Project Gutenberg, Standard Ebooks, most technical publishers, and anything you produced yourself — will convert.