EPUB to print PDF

An ebook has no pages

That sounds like wordplay and is the whole difficulty. An EPUB contains no page size, no margins and no page count, because the device supplies all three when someone opens it. A printed book has nothing else — the page is the fixed thing.

So this is not a format conversion so much as a decision you have not made yet: how big is the book. Choose a trim size and the rest follows, including the inside margin, which depends on the page count, which only exists once the text has been laid out.

Why the EPUB is often the better source

If you still have the Word file you might assume it is the more faithful original. Usually it is not.

A .docx says this line is 16pt bold and centred. An EPUB says this is a chapter, and here is where it sits in the book — the structure was declared when the ebook was built, and it is still there. Reading from the EPUB means the chapters are known rather than inferred, which is one fewer thing to get wrong.

Questions

What kind of PDF do I get?

A print interior: the page is the finished book page at the trim size you choose, with mirrored margins and an inside margin sized to the page count. It is meant for a printer, not for reading on a screen — a screen-sized PDF of an ebook is something an ereader already does better.

Why does converting an EPUB to print need any decisions?

Because an EPUB has none of the things a printed page is made of. It has no page size, no margins and no page count — the reader's device decides all three at reading time. Going to print means supplying them, which is why you pick a trim size here and why the page count only becomes real once the file is laid out.

Is this better than converting the original Word file?

Usually the EPUB is better, which surprises people. A Word file has no declared structure — chapter titles are just bold text, and the chapters have to be inferred. An EPUB was built as separate chapter documents with a navigation map, so the structure is stated rather than guessed at. If you have both, the EPUB is the more reliable source.

What about images in the EPUB?

Not carried through. The pipeline handles text — headings, paragraphs, block quotes, scene breaks — and an illustrated book needs image handling we have not built. If your EPUB is mostly pictures, this is not the right tool and we would rather say so before you upload it.

Can I go the other way?

Yes — a .docx or .epub in, an EPUB out, on the EPUB formatter. What we cannot do yet is read a PDF, which is a genuinely harder problem: a PDF records where ink goes, not what the text means.