The Word Add-in creates a two-column copy of the open document: the original language on the left, a translation on the right. The copy opens in a new window and your original document stays unchanged. The translation runs in the background, so you can keep working while it processes.
Step by step
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Open the document you want a bilingual copy of in Word.
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In the Add-in, switch to the Edit tab and click Translate.
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Choose Create a bilingual copy.

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Under Select the second language, choose the language for the right column.
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Optional: set the options for the copy (see Good to know).

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Click Create Copy. Progress is shown as a percentage. You can close the modal - the copy is created in the background and opens in a new window.
Good to know
- Number both sides: When enabled, headings and lists are numbered in both columns. Otherwise only the left column is numbered.
- Add language precedence clause: Adds a clause before the signature block stating that the original (left column) version is legally binding and prevails over the translation.
- Apply formatting: Keep the document’s current formatting, or re-format the copy with a formatting preset - hardcoded numbering is then replaced by the preset’s numbered styles. See Apply a formatting preset.
- The original stays unchanged: The bilingual copy opens in a new window; the document you started from is not modified.
- Incomplete translation: If individual paragraphs could not be translated, the Add-in flags it - their translation column is left empty. Please review the document afterwards.
- Just need a translation? To translate the document into one language instead of a two-column copy, use Translate a document.