The Butler AI
Preparing your butler
Free account in 10 seconds
Scientific PDF translation

Translate research papers.
Every formula stays put.

Upload a paper or a technical PDF and get it back in English, Ukrainian or Russian — with LaTeX formulas, tables, figures and the bibliography exactly where they were.

  • 10 pages without an account
  • English · Українська · Русский
  • Ready in minutes
Try it now

10 pages free, no sign-up

Drop a paper and get the translation in a few minutes. The first 10 pages need no account.

What stays intact

Only the words change. The science does not.

Ordinary translators turn equations into gibberish. The Butler rebuilds the paper with the same structure, so you can read it as if it was written in your language.

Formulas

Inline and display math is kept as LaTeX and re-rendered, with the original equation numbers.

Tables

Cells are translated, structure and numbers stay the same.

Figures and captions

Images stay in place; captions are translated.

Algorithms

Pseudo-code boxes are inserted as images, so nothing gets broken.

Bibliography

References are left in the original — exactly what you need to cite them.

Consistent terminology

A glossary of key terms keeps every term translated the same way across the paper.

How it works

From PDF to translation in four steps

  1. 1

    Upload the PDF

    Up to 50 MB. Translate the whole paper or only the pages you need.

  2. 2

    Check the glossary

    The Butler suggests translations for key terms. Edit them or skip this step.

  3. 3

    Translation

    Text is translated around the formulas, then the paper is assembled again.

  4. 4

    Download

    Get the translated PDF on the site — the bot can also notify you in Telegram.

Limits

Free to start, more with Plus

Trial10 pagesno account needed
Free50 pages / monthup to 40 pages per document
Plus500 pages / monthup to 200 pages per document

Translated files are kept for 7 days. Plus is paid with Telegram Stars. Compare plans →

FAQ

Questions and answers

Which languages are supported?

Papers can be translated into English, Ukrainian and Russian. The source language is detected automatically.

Will the formulas really survive?

Yes. Formulas are recognised as LaTeX, are never sent through the text translator and are rendered again in the output PDF.

Can I translate a scanned PDF?

Not yet. The translator works with born-digital PDFs such as arXiv preprints and journal articles. Scanned documents are on the roadmap.

How long does it take?

Usually a few minutes for a typical 20–30 page paper. You can close the page — the result waits in your account.

Is my document private?

Files are available only in your account and are deleted automatically after 7 days.

Do I need an account?

No: the first 10 pages can be translated without one. A free Google account gives 50 pages every month and keeps your translations in one place.

Do I need Telegram?

No. A Google account is enough to translate. Linking Telegram adds notifications and the chat assistant.

Scientific PDF translation

Your next paper, in your language

Try 10 pages right now without an account — or sign in with Google and translate 50 pages every month.

Everything The Butler can do