+35%
German runs longer
German and Dutch translations typically add 35% or more to English text length — enough to push tables, callouts and page breaks out of place.
Source: Argo Translation
FFFormatFlow
Translate Word documents and keep the formatting.
FormatFlow Studio batch translates DOCX files while preserving headings, styles, tables, headers and footers. Layout risks are flagged for your review — and it all runs locally on your Windows machine.
Local-first · your files never touch our servers · translation runs under your own API key
The Problem
Translation reflows documents because translated text is longer.
Word documents look simple until the text grows. Translations rarely match the source length, so paragraphs reflow, tables stretch, page breaks drift and the headers, footers and numbering you set up carefully stop lining up. Generic translators swap the words and leave the cleanup to you.
+200–300%
Short strings expand most
Headings, labels and table cells can expand by 200–300% in translation — exactly the elements that anchor a document's layout.
Source: W3C, "Text size in translation"
Review
The new bottleneck
Machine translation handles the words. What still costs hours is checking structure, terminology and layout on every page — the part FormatFlow is built for.
How It Works
From source document to translated document in four steps.
1. Drop your DOCX files
Add one document or a whole folder. PPTX files can join the same batch.
2. Choose languages
Select one or more target languages — including Arabic, Chinese, French, German and Spanish.
3. Set your controls
Layout preservation, overflow detection, adapt-text-to-fit, glossary, translation memory, model choice and a cost cap.
4. Review and export
Check flagged items in QA Review, then export translated, review-ready files grouped by language.
What's Preserved
The document you translated still reads like your document.
FormatFlow translates the text inside the existing document structure instead of rebuilding it, so the things that take longest to fix by hand stay where they were.
- Headings, styles and section structure
- Tables and lists
- Headers and footers
- Glossary terms and product names
- Consistent phrasing via translation memory
- Review-ready file naming per language
Why FormatFlow
Local-first, with rules you set.
Your document stays on your machine
Files are opened, checked and rebuilt locally — they never touch our servers. Translation runs under your own OpenAI API key, only when you run it. Built for contracts, policies and client proposals.
Parameters you control
Tone preset, industry, your own client brief, glossary and memory, adapt-text-to-fit on or off, and a cap on estimated API cost. Nothing is decided for you.
Review-first layout checks
When translated text threatens the layout, FormatFlow flags it. You review a short list and approve — nothing is changed silently.
FAQ
Translating Word documents, answered.
How do I translate a Word document without losing the formatting?
Use a tool that works inside the document structure instead of copy-pasting text. FormatFlow Studio opens your DOCX locally, translates with layout preservation on, keeps headings, styles, tables, headers and footers in place, and flags layout risks for review before you deliver.
Why does translating a Word document break the formatting?
Translated text is usually longer than the source — German typically adds 35% or more — so paragraphs reflow, tables stretch and page breaks move. Generic translators swap the words without managing the layout. FormatFlow translates within the existing document structure and reports what needs a human look.
Does my document get uploaded to the cloud?
No. FormatFlow Studio runs on your Windows machine and your files never touch our servers. Translation runs under your own OpenAI API key, sent directly from your computer to the provider, only when you run a batch.
Can I batch translate multiple Word documents at once?
Yes. Drop a whole folder of DOCX and PPTX files, pick one or more target languages, and FormatFlow translates the batch and groups the output files by language with review-ready names. There are no per-document caps.
How much does it cost?
The Windows download is free and a short trial unlocks everything. Translation uses your own OpenAI API key, so you pay the provider directly for model usage — FormatFlow shows an estimated cost before you run a batch and lets you set a spending cap.
Will terminology stay consistent across contracts, policies and proposals?
Yes. Add protected terms to the glossary and approved phrasings to the translation memory, and FormatFlow applies them across every document in the batch — across languages and projects.
Test it with a real document.
Upload a DOCX to the free online tester for an instant structure and QA check — or download FormatFlow Studio and translate the whole batch.