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Ebook Translator

Translate ebooks in an EPUB-first workflow that keeps the result practical for reading, desktop review, and saving as part of your library.

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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.

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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.

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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 translate ebooks and keep the result locally

The desktop app gives you a better place to translate ebook content, inspect the translated result, and save it locally once it is ready. After review, you can continue reading on desktop or move to iPhone or iPad for a lighter reading flow.

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Translate ebooks into versions you can keep and read over time

Even as a broad tool term, what matters most is still an ebook that remains useful after translation instead of turning into loose extracted text.

  1. Best for readers comparing ebook translation tools

    A strong fit when you want a translation workflow that treats the ebook as something to keep reading, especially when the book is already in EPUB or a similar reading-first format.

  2. The translated ebook should remain useful

    A good result is an ebook you can save, reopen, and read over time instead of a temporary dump of translated passages.

  3. Desktop review helps before you save the book

    Users often want to inspect the translated book, see whether it reads coherently enough, and only then move it into their longer-term reading workflow.

  4. Useful when you want an ebook workflow, not just text extraction

    The important outcome is a translated book you can save, reopen, and continue reading, even when the search starts from a broader ebook term.