Upload a PDF or Word file written in English and download it translated into Japanese. The languages are already set; you can change them at any time.
Why translate English documents into Japanese
Japanese business partners generally expect proposals, specifications and support documentation in Japanese, even when they read English. Software and game companies also translate manuals and help content for the Japanese market.
- business proposals
- product specifications
- software manuals
- customer support documentation
How to translate a English PDF to Japanese
- Upload your PDF or Word (DOCX) file, up to 300 MB.
- English is set as the source and Japanese as the target. Swap or change them if you need to.
- Choose Standard translation, or Advanced to control formality and apply a glossary.
- Check the credit estimate for your file and start the translation.
- Download the Japanese document when it is ready.
About English and Japanese
English (English) is written in the Latin script and spoken by about 1.5 billion, mainly in the UK, the US, Canada, Australia, Ireland, India and most international organisations. US documents write dates month-first (04/10/2026 is April 10) while British and most other documents write them day-first, so check dates carefully when moving between regions.
Japanese (日本語) is written in the Kanji, hiragana and katakana script and spoken by about 125 million, mainly in Japan. Japanese mixes three scripts with no spaces between words, and business documents rely on set polite (keigo) expressions that have no direct English equivalent.
Frequently asked questions
How much does it cost to translate a English PDF into Japanese?+
Translations are paid with credits, priced per page. You see the exact credit cost for your file before you start.
Which files can I upload?+
PDF and Word (DOCX) files up to 300 MB.
Can I translate Japanese back into English?+
Yes. Swap the languages with the arrow button, or use the Japanese to English translator.
Do I need to install anything?+
No. The translator runs in your browser on desktop and mobile. iOS and Android apps are also available.
