DualBook 8 languages

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Make a Chinese-Indonesian bilingual book

Each Chinese paragraph with its Indonesian translation directly beneath it, in one EPUB. Read the Chinese first; the Indonesian is there when the characters stop adding up.

The first 15 pages of text are sent to our server to be translated. The file itself stays on your device.

For an Indonesian reader learning Chinese, the grammar is the easy part — both languages leave verbs alone and let context carry time, so the sentence logic is already familiar. What is hard is the writing system: a character you have not met has a reading you cannot guess, and there are no spaces to tell you where a word ends.

That is precisely the situation a parallel text is built for. The translation underneath removes the lookup entirely, and because the grammar is already familiar, almost all of your attention goes where it is needed — onto the characters themselves.

Your browser opens the EPUB, walks each paragraph and inserts the Indonesian beneath it inside the original file, rewriting only the chapter documents that received a translation.

How it works

  1. Choose a Chinese EPUB

    A DRM-free EPUB. The bilingual file is assembled in your browser, not on a server.

  2. The model reads the whole book

    The cast and the forms of address are fixed once, so the Indonesian keeps its footing from chapter to chapter.

  3. Indonesian is inserted under each paragraph

    Each translation is styled beneath its paragraph — and Latin script under Chinese characters is unmistakable at a glance.

  4. Read it here, or on your phone

    A complete EPUB carrying the book's own fonts and stylesheets, so CJK text displays as the book intended.

The trap, and the honest limits

Your eye will go to the Indonesian. Read the Chinese paragraph first, every time. The seconds of working out a character are the practice.

No pinyin is added. Readings are not annotated — the translation tells you what the sentence means, not how to pronounce it.

Fifteen pages get translations. The rest of the book stays in Chinese inside the same file.

The text is sent to a server and discarded when the job ends. The file never leaves your device.

Questions

Which side should I read first?

Chinese first, every paragraph. Reading the Indonesian first means finishing a whole book having practised almost nothing.

Is pinyin included?

No. The translation gives the meaning of the paragraph, not the pronunciation of each character; adding readings would be a different product and a much more cluttered page.

Why is this pair good for parallel reading?

Because the grammar is already familiar — neither language conjugates or marks tense — so nearly all the difficulty is in the writing system, and that is exactly what a translation underneath lets you attack directly.

Will it open on a Kindle?

Yes. Kindle has accepted EPUB directly since 2022 and renders Chinese; email the file to your device or copy it across.

The whole book, in parallel

The app builds the bilingual version of the entire book, with tap-to-look-up and your reading position synced across devices.

Open DualBook