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Insight Doc Translator

Insight Doc Translator

AI Translation + Easy Rewrite + Summarize — Layout Preserved.

Insight Doc Translator goes beyond simple translation. Drop a PowerPoint, PDF, Word, or Excel file and choose what you need: translate into 47 languages with 6 engines (DeepL, Google, Azure, Claude, Gemini, OpenAI), or rewrite the same language in plain Japanese (JLPT N4/N5), shorten to fit a layout, or polish into formal tone — all while keeping the original layout intact. Auto-furigana on kanji helps non-native readers and Japan's Skilled Worker (Ikusei Shuro) program from April 2027. Local processing, BYOK, no cloud lock-in.

v1.0.4(released 2026-05-03)Release notes & full features

If your corporate network blocks the download page, the same file is available on GitHub.

Just drag & drop your PowerPoint or PDF to get started.(unmute for full narration)

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Free trial available · Invoice available at checkout

Free trial
Invoice ready
Annual sub · no monthly billing

Global pricing is billed in USD ($199 / $499). LemonSqueezy auto-converts to your local currency at checkout using the current exchange rate.

PowerPoint, PDF, Word, Excel — all translated as-is

No copy-pasting. Drop the file and layout, fonts, tables, and figures all stay intact.

P

PowerPoint (.pptx)

Insight Doc Translator — PowerPoint (.pptx)

View source/target/progress per slide. Presentations and proposals keep their layout.

PDF

PDF

Insight Doc Translator — PDF

Preserves the text layer. Scanned PDFs handled via Claude Vision OCR.

W

Word (.docx)

Insight Doc Translator — Word (.docx)

Character styles, paragraph formatting, tables, headers, footers — all preserved.

X

Excel (.xlsx)

Insight Doc Translator — Excel (.xlsx)

Formulas, conditional formatting, charts intact; only cell content is translated.

Run overnight, review in the morning

Batch multi-file × multi-language × multi-engine. Compare engine outputs side-by-side in the comparison view.

Insight Doc Translator — Batch file processing

Batch file processing

Translate many files overnight. Done by morning.

Insight Doc Translator — Multi-language output

Multi-language output

One file → 47 languages including all 9 Skilled Worker source countries.

Insight Doc Translator — Multi-engine batch

Multi-engine batch

Translate with Claude / DeepL / Google etc. simultaneously, pick the best.

Insight Doc Translator — File comparison view

File comparison view

Compare original vs translated or engine outputs side-by-side.

A translation engine is not the same as a field tool.

Translating sentences and producing field-ready multilingual training materials are different problems. Layout preservation, multi-language batch, furigana, and 11-language presets for Skilled Worker programs — that's what the field needs.

How this differs from general cloud translation

Free translators leave you stuck in these business scenarios.

AspectGeneral cloud translationInsight Doc Translator
Drop PowerPoint / PDF as-isCopy → translate → paste back (manual)Drop and done
Layout preservationBreaks (fonts, layout, images)Fonts, layout, embedded images intact
Enforce corporate glossaryLimited in general translation toolsCSV/Excel glossary enforced at translation time
Easy Japanese rewriteNot availableJLPT N4/N5 + auto-furigana
Skilled Worker 2027 readinessBuilt for multilingual training mandate
Data residencyCloud (external servers)Local + send only what's needed
Pricing modelPer-user monthly / annual subscriptionPer-device annual license

※ Comparison against common per-user annual subscription models offered by cloud translation services.

Development Background

Born from the question: "Why doesn't Office have this feature?"

We built this for two clear pain points. First, generic machine translation breaks formats and ignores company terminology — every company has its own jargon. Second, even with perfect translation, materials are still too hard for foreign workers learning Japanese. So we added 'Intralingual translation' — rewriting Japanese into N4/N5-level easy Japanese — alongside the 47-language interlingual translation. With Japan's Skilled Worker program starting April 2027 demanding multilingual training materials, this dual approach (translate AND rewrite) is the only practical answer.

STORY

A 2-minute story of one site supervisor and a foreign technician

How Tanaka, struggling with the language barrier, came to deliver native-language manuals to Nguyen.

▶ Click play to watch with audio

*Characters are fictional. Reconstructed from actual pilot operation and product specifications.

Key Features

Triple-axis translation — Interlingual (47 langs × 6 engines) + Intralingual (Easy/Shorten/Polite rewrite) + Furigana for Japanese
Multi-format support — PowerPoint (.pptx), PDF, Word (.docx), Excel (.xlsx), Text (.txt)
47 languages — including Japanese, English, Chinese, Korean, Vietnamese, Thai, Indonesian, Tagalog, Burmese, Nepali, and 37 more
6 translation engines — DeepL, Google, Azure, Claude, Gemini, OpenAI — pick the best fit per file or per row
Easy Japanese rewrite (JLPT N4/N5, CEFR-A1/A2) — flagship feature for the Skilled Worker (Ikusei Shuro) program 2027
Show all features (15)
Auto-furigana on kanji — local processing (NMeCab + IPA dictionary), no LLM call needed, perfect for newly arrived workers
Summarize preset — compress to half-length while preserving meaning, fits tight slide layouts
Polite tone preset — auto-formalize into proper keigo (sonkeigo + kenjogo)
Layout preservation — every layout, font, and embedded object stays intact
Custom glossary (CSV/Excel import + DeepL Glossary sync) — enforce corporate terminology consistently
Translation memory — reuse past translations across projects
Side-by-side comparison and report output — original vs translated, side-by-side review
BYOK (Bring Your Own Key) — use your own AI provider keys, no recurring AI cost lock-in
Local processing, no cloud upload — your documents never leave your PC
JA/EN/ZH/KO four-language UI

File Compatibility & Limitations

Supported

  • PowerPoint (.pptx) — translates slide text preserving layouts, fonts, and animations
  • PDF — extracts text and translates (v1.0.4+)
  • Excel (.xlsx) — translates cell content preserving formulas and structure
  • Word (.docx) — translates document text preserving styles and formatting
  • Text (.txt) — translates plain text files
  • Glossary CSV/Excel — custom terminology enforcement, with DeepL Glossary sync
  • Translation memory — reuse past translations across projects
  • Intralingual rewrite (Japanese only) — Easy Japanese N4/N5, Shorten, Polite presets
  • Auto-furigana on kanji (Japanese target) — local NMeCab processing

Notes & Limitations

  • Images and embedded objects are not translated (text in images remains as-is)
  • Complex macros and VBA code are preserved but not translated
  • Scanned PDFs without text layer require OCR (can use Claude Vision OCR)
  • Very large files (100+ slides / 10,000+ cells) may take longer to process
  • Intralingual rewrite (Easy Japanese / Shorten / Polite) is currently Japanese-only

Real-World Use Cases

Training material localization — translate safety manuals and onboarding docs for international teams
Multi-language proposal preparation — translate client proposals while preserving formatting
Technical document translation — translate specs and procedures with company glossary enforcement
Cross-border project communication — translate reports and meeting minutes for overseas offices
Regulatory compliance — translate compliance documents maintaining precise terminology

Implementation & Support Structure

Insight Business Suite is a self-developed product backed by certified partner-led deployment support. From requirements analysis and environment setup through user training and operational adoption, a dedicated team walks alongside you. Ongoing improvement proposals, update rollouts, and technical support ensure stable operations regardless of organization size.

AI you can trust — try it with your own files

Open your .xlsx or .pptx in the free version. See AI edit your documents — with anonymization protecting your data. Then scale with confidence.

Free version available — no credit card, no commitment