How to keep the layout in a Word bilingual translation: a hands-on walkthrough

Introduction

In foreign trade, law, and academic work, translating documents is part of the daily job. The usual methods are to copy and paste into a translation tool, or to use Word's built-in translator. Both share one problem: the translation cannot be written back into the document, and it also cannot keep the original formatting and layout.

The Word add-in in this walkthrough — TopCopilot AI, was built for that problem. It offers two write-back modes:

Direct mode (Translation): replaces the source with the translation, when you only need the final text
Bilingual mode (Bilingual): keeps the source and inserts the translation below, when you need to check both languages

This walkthrough focuses on bilingual mode — open the whole document in Word and click Start once. The full text, including tables, checkboxes, and images, is translated in one pass, and the translation is inserted under the source. Table borders, checkboxes, images, fonts, and sizes stay as they were, with no need to select paragraph by paragraph or split the file.

The add-in translates between 14+ mainstream languages. The example below translates Simplified Chinese into English.

1. When you need it: which documents need a bilingual translation?

The video uses a real trade document — Certificate of Origin Application Form. Documents like this have a few traits:

Lots of specialized terms: trade terms such as FORM A, FORM B, CO, FOB, CONSIGNEE, and SHIPPER
Complex layout: tables, checkboxes, images, signature blocks, and more
Needs a bilingual view: so both sides can check the same content

Translating this kind of document by hand takes at least 30–60 minutes. A traditional translation tool is faster, but the layout is easily lost completely, bilingual view is not supported, and cleaning it up afterwards takes even longer.

2. Walkthrough: from opening the document to a finished translation

Step 1: Open the document and start AI Assistant

Figure 1: the original Chinese document

After you open the Word document you want to translate, the top menu bar shows the "AI Assistant" tab. Click it, and the AI Assistant panel opens on the right.

The top of the panel shows:

Full document (full-document mode)
Target language: English (target language: English)

Step 2: Set the translation options

Figure 2: translation settings

Click "Advanced" to expand the advanced settings. Two main areas appear:

WRITE-BACK (write-back mode)

Translation: direct mode; the translation replaces the source
Bilingual: bilingual mode; the source stays, and the translation is inserted below

TRANSLATION STYLE (translation style)

Translation font: translation font (Times New Roman by default)
Translation size: translation size (matches the source by default)
Translation bold: translation weight (matches the source by default)
Translation color: translation color (default color / custom color)

Figure 3: translation style in detail

These settings make the translation visually distinct from the source while keeping the document professional and readable.

Step 3: Start the translation

Figure 4: scanning the document

Click "Start" . The add-in first scans the document structure. The panel then shows:

Scanning the document...

Don't edit the document during translation, or write-back may miss.

Important: do not edit the document while it is translating, or the write-back can land in the wrong place.

Step 4: Live progress

Figure 5: translation starts

After the scan, translation starts. The panel shows:

75 paragraph. Starting...

Translating...

This document has 75 paragraphs and is sent as one whole document. The progress below (10/75 → 35/75 → 60/75) only makes the work visible. You click Start once; you do not select paragraph by paragraph, and you do not split the file.

Figure 6: translation progress 13%

When the translation reaches paragraph 10 of 75 (13%) , bilingual text is already in the document:

A blue translation was inserted under the Chinese title "Application for Certificate of Origin"
Under the applicant line, it inserted "Applicant (seal):"
Under the declaration line, it inserted "The applicant solemnly declares:"

The panel on the right shows each paragraph as Src/Tr, so you can check quality as it goes.

Figure 7: translation progress 47%

When the translation reaches paragraph 35 of 75 (47%) , tables in the document start to be translated too:

"Vessel and voyage" → "Vessel Name and Voyage Number"
"Transport route" → "Transport Route"
"Importer" → "Importer (CONSIGNEE)"
"Exporter" → "Exporter (SHIPPER)"
"Shipping marks" → "MARK"

Note: images in the document (such as the airplane picture) are kept. They are not translated or covered over.

Figure 8: translation progress 80%

When the translation reaches paragraph 60 of 75 (80%) , most of the content is done. Table fields such as mailing address, contact, phone, and fees already have English translations.

Step 5: Translation finished

Figure 9: translation finished

In only 14.8 seconds, all 75 paragraphs are translated. The panel shows:

Translation finished — 75 paragraph shown, 14.8s

Done

A notice appears at the bottom of the document:

"Bilingual text was inserted in this document" (bilingual text was inserted in this document)
"This document can be translated images" (this document still has images that can be translated). You can translate those images as a further step if you need to

Step 6: Review the bilingual result

Figure 10: bilingual mode

When translation finishes, the panel offers "Display" display switching:

Bilingual (bilingual): shows the source and the translation together
Original (original): shows only the source

In bilingual mode, the document shows Chinese and English together:

the Chinese source stays black
the English translation is blue
formatting, tables, and checkboxes are all kept

Step 7: Switch to the original view

Figure 11: original mode

Click "Original" . The document returns to Chinese only, and the English translation is hidden. This is useful when you need to print a Chinese-only copy: you do not delete the translation, you only switch the display.

The panel on the right still keeps every pair, and you can switch back to bilingual at any time.

Step 8: Choose a custom translation color

Figure 12: custom color settings

If you do not like the default blue translation, open TRANSLATION STYLE and change Translation color to "Custom color".

Figure 13: the color picker

Click the color swatch and a full color picker opens. It supports:

Palette: a visual gradient palette
RGB values: exact color control (for example R:165, G:52, B:3)
Hex color: formats such as #A53403

Figure 14: the custom color applied

After you pick a custom color (for example a brown-red), the English translation in the document updates immediately. This helps when you need to separate language versions or match a brand color.

3. What it does

Features	Details
Full-document translation	Translates the whole document at once, with no need to select paragraph by paragraph or split the file (this demo has 75 paragraphs)
Bilingual comparison	Keeps the source and inserts the translation below, paragraph by paragraph in Chinese and English
Formatting preservation	Keeps the existing layout, including tables, checkboxes, images, fonts, and sizes
Live progress	Shows a percentage and a paragraph count
Translation style	Font, size, weight, and color can be customized
Display switch	One click between bilingual and original
Tables	Text inside tables is translated correctly too
Images kept	Images in the document are not damaged
Speed	This document, 75 paragraphs and 833 words, took 14.8 seconds for the whole piece

4. Who it is for

International Trade Professionals: product manuals, contracts, customs forms, and other trade documents
Legal professionals: bilingual checking of legal documents and contract clauses
Academic researchers: translating papers and literature, and reading them side by side
Translation companies: faster translation, with formatting kept consistent
Company administrators: multilingual versions of internal documents

5. Practical advice

Back up the document first: the add-in does not destroy the source, but save a copy anyway
Do not edit during translation: otherwise the write-back can land in the wrong place
Check specialized terms: after translation, review the key terms yourself
Use Glossary: if you have a fixed term list, import it first so the wording stays consistent
Image translation: if the document has images that need translating, use "Translate images"

6. Closing

For people who live in Word every day, the useful part is specific: translate inside the original document, keep the structure where possible, and check both languages, without rebuilding the whole layout.

A good fit:

You actually have a Word（.docx） file (trade documents, contracts, SOPs, internal materials, and so on).
For a bilingual check, or you want a translation without rebuilding tables, checkboxes, and styles by hand.
You want a draft quickly — this demo was about 75 paragraphs / 833 words, 14.8 seconds.

A poor fit:

For certified / court-ready translation. An AI draft plus human review can work; delivering an AI-only translation cannot.
The file is a PDF converted to Word and the layout is often already a mess (overlapping text boxes, broken styles, text that looks pasted onto the page). Tidy or simplify the source a little first, or leave time for a visual check afterwards. The add-in keeps the structure it is given, but it will not turn a bad PDF conversion into a clean layout.

In short: it is built for native Office files that still have to keep their formatting when you send them. Expect limits on certified translations and on messy PDF-to-Word layouts. Back up first, do not edit mid-translation, and glance at the key terms yourself.