Offline Document Translator

Portuguese ↔ English in Word and ODT

I built a desktop app that translates technical documents without pulling apart tables, images or formatting. Translation runs locally by default; people review the result and can create a bilingual PDF for reference.

The translator showing a completed demonstration document and bilingual output. — REAL INTERFACE · DEMONSTRATION DOCUMENTDocument ready for translation.The capture contains no company or customer material.

DocumentsWord · ODT

ProcessingLocal by default

OutputReviewable document · bilingual PDF

THE WORKFLOW

From source file to review

The screenshots show a demonstration document going through the local translation flow.

A demonstration Word document selected in the translator before processing. — DEMONSTRATION DOCUMENTThe original file is ready to be translated.

The problem

Some technical documentation needs to be available in Portuguese and English. Translating files one by one took time, and common translators could disrupt tables, images, formatting and technical terms.

What I built

I built a desktop app that translates DOCX and ODT files, keeps their structure and prepares a bilingual version for review and PDF export.

How it works

A person opens a document, chooses the translation direction and reviews the result. In bilingual PDFs, document controls help readers switch between Portuguese and English.

Who uses it

People across different company areas use the translator to prepare technical documentation in English, including Quality, leadership and employees who need to share material with other audiences.

The benefit

The workflow reduces the rework of rebuilding a document after translation and leaves the material ready for review by someone who knows the subject.

The challenge

Translating words was not enough; document structure had to survive changes to the translation engine. I added automated checks to catch document regressions as the app evolves.

Technology

Python · PySide6 · DOCX/ODT processing · local translation · translation memory · QA · Windows packaging.

What “local” means

The main workflow processes translation on the computer. Optional features that depend on a configured service are not described as offline processing.

I build and support the app used internally. The interface is real, but the file shown is fictional; no company documents are published.

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