Skip to main content
PDF Craft

EPUB Translation

Evaluate an EPUB translation workflow built for real books, desktop review, and a translated result worth keeping.

Drop a PDF or EPUB here

Upload one document, then choose the result you want to create.

PDF or EPUB · one file at a time

Another language. Still your book.

From chapter headings to images, footnotes and text styles, the translation follows the structure and layout of the original. Read in a new language with a familiar reading experience.

Original · English

Calculus Made Easy

Chapter I

A little bit of. The sum of.

These dreadful symbols are:

(1) d which merely means “a little bit of.” Thus dx means a little bit of x; or du means a little bit of u. But you will find that these little bits (or elements) may be considered to be indefinitely small.

dx,du

(2) ∫ which is merely a long S, and may be called (if you like) “the sum of.” Thus ∫dx means the sum of all the little bits of x; or ∫dt means the sum of all the little bits of t.

∫dx,∫dt

The word “integral” simply means “the whole.” If you think of the duration of time for one hour, you may (if you like) think of it as cut up into 3600 little bits called seconds. The whole of the 3600 little bits added up together make one hour.

1
Translation · European Spanish

El cálculo al alcance de todos

Capítulo I

Un poquito. La suma.

Estos temibles símbolos son:

(1) d, que solo significa «un poquito de». Así, dx es un poquito de x; du, un poquito de u. Pero verá que estos pequeños trozos (o elementos) pueden considerarse indefinidamente pequeños.

dx,du

(2) ∫, que no es más que una S alargada y puede llamarse, si lo desea, «la suma de». Así, ∫dx es la suma de todos los pequeños trozos de x; ∫dt, la de todos los de t.

∫dx,∫dt

La palabra «integral» significa simplemente «el todo». Puede imaginar una hora dividida en 3600 pequeños trozos llamados segundos. Todos esos 3600 trozos sumados forman una hora.

1
  • Chapters & headings
  • Text & equations
  • Adjustable text
  • Fonts & styles

A new language, the same familiar book. Keep the chapters, images and original layout, and carry on reading in your favorite reader.

Desktop + iOS client

Download the desktop app to test EPUB translation on real books

The desktop app gives you a practical environment to translate EPUB books, inspect the result on a larger screen, and keep files locally while you review them. That helps when you want to judge how usable an EPUB translation really feels on a full book.

EPUB PDF ZIP M4B
See client apps

Judge EPUB translation by whether the book still works afterward

What matters most is whether the translated EPUB remains readable, reviewable, and worth keeping as a book rather than becoming a temporary text export.

  1. Best for evaluating EPUB translation workflows

    Useful when you are comparing tools or approaches and want to see whether the translated book remains truly readable.

  2. A good result is an EPUB you would actually keep

    Strong EPUB translation leaves a book that is still browsable, readable, and worth returning to later.

  3. Desktop review helps judge translation quality

    Seeing the translated book in context makes it easier to decide whether the workflow holds up across the whole reading experience.

  4. Useful when you want to assess a full reading workflow

    The important question is whether the translation result still feels usable over a whole book, not just whether text can be converted at all.