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PDFMathTranslateDeftPDF
Free

Free and open source under the AGPL 3.0; paid translation APIs you connect may cost money.

 Freemium

Free to use with limits; Premium membership raises file size and batch limits and adds AI…

Windows, macOS, Linux, Web, Self-hosted, Command line Android, iOS, Web
  • Keeps formulas, charts and layout when translating
  • Works with many translation services, including local Ollama models
  • More than 40 PDF tools in one place
  • Document translation and OCR included
  • Translation quality depends on the service you choose
  • OCR support is still experimental
  • Files are uploaded to DeftPDF's servers for processing
  • Free tier limits file size and batch size
Downloadable app, Web application, Self-hosted Downloadable app, Web application
Open source Closed source
License: AGPL-3.0 License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Needs internet

Checked September 24, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.