PDF translation

A free account can translate one PDF and read the whole translation online. Downloading and translating more need Pro or Ultra, which translate with their weekly Built-in AI credit; longer PDFs use more of it.

No. PDF translation runs on our servers, where one PDF can take several minutes, so your own key would have to be handed to our server to hold. For security, our backend accepts no API keys from users, for three reasons. First, a server that stores everyone's keys becomes a single target: one breach would leak them all at once. Second, a key carries your balance and permissions with the AI provider; a stolen one can be used up or resold, the bill lands on you, and we would have little way to notice. Third, AI has made finding flaws and automating attacks easier than ever, and a stolen key turns straight into money, so attacks like these keep growing. That's why PDF translation always uses Built-in AI, and you don't need a key at all.

Headings, columns, formulas, tables and images stay where they were; only the text is translated. A very complex page can come out slightly off. If you see one, tell us with Report a problem on the translation's page.

Side by side puts each original page next to its translation, for reading them together. Translation only has the same pages and layout as the original, with the text translated. One translation makes both; you choose when you download.

Not yet: only PDFs whose text you can select. Scans, and PDFs whose pages are images, can't be translated for now.

Each PDF can have up to 100 pages and 50 MB. You can pick up to 10 at a time, and they translate one after another.

It usually starts within about a minute, then takes around 10 seconds a page. It runs in the background: close the page and open it later from your history.

Your PDF is only used for this translation. It's deleted a day after the translation ends, and the translations after 7 days. You can delete them sooner from your history.

You can translate into 13 languages: English, Simplified Mandarin Chinese (简体中文), Traditional Mandarin Chinese (繁體中文), Japanese (日本語), Korean (한국어), French (Français), German (Deutsch), Spanish (Español), Portuguese (Português), Italian (Italiano), Russian (Русский), Vietnamese (Tiếng Việt), Turkish (Türkçe). The PDF's own language is detected for you.