PDFMathReader
Get the app
PDFMathReader app icon

Read beyond language.
Stay with the ideas.

Read science in your language.
Translation appears as you read, keeping formulas and layouts as close to the original as possible.

Download PDFMathReaderTry the reader

macOS · Windows · Linux · iOS

v0.1.13 is here

Read on your favorite platform

PDFMathReader reader on macOS
A familiar interface. More room for the paper.

Reading keeps moving.
So does your thinking.

From the first translated paragraph to your final annotation, built around how you read research.

Original and translation, in place.

Analyze layouts and translate as you read. Choose paragraph overlays or translated pages with formula preservation, balancing speed and detailed typesetting.

  • Ultra fast · PDF Inspector paragraph overlays
  • Fast · PDFMathTranslate
  • Precise · PDFMathTranslate-next

Your service. Your language.

Connect major AI providers or custom services through OpenAI-compatible APIs. Set interface, source, and target languages independently, including custom language codes.

Reuse cached translations for the same service and model. Partner-provided free services depend on availability in the app.

Make the important parts stand out.

Emphasize topic sentences, scientific findings, and logical connections. Highlight distinctive terms with TF-IDF, or try bionic reading with fixed-length or word-root emphasis.

Adjust fonts, CJK typography, and smooth scrolling for longer reading sessions. Force smooth scrolling for mouse wheels independently.

Keep your thoughts with the text.

Highlight and annotate originals and translations. Navigate through thumbnails, outlines, search, quick links, and gallery views. Switch between windows or tabs.

Choose reading layouts, fit-to-width, fit-to-height, and zoom settings that suit the way you read.

Another device.
The same focus.

A familiar reading experience, on desktop and mobile.

Explore the iOS app

Let your desktop do the work.

Share your computer’s translation kernels, pair remote devices, and see connected clients. Eight-character pairing codes make connecting easier.

Minimize the window. Keep translating.

Service mode keeps translation services available while windows are minimized. Share documents between apps and devices with tools such as AirDrop.

Remote sharing requires a reachable computer and network. The iOS app is provided in a separate repository.

Your reading.
Your style.

Fonts, accent colors, dark mode, and a whole set of app icons.
Choose an icon to preview your PDFMathReader.

Previewing Default. This changes the website preview only.

Read a page.
Get a feel for it.

Choose a prepared translation, click a paragraph to see the original, or adjust the zoom.

The demo uses prepared translations. No API key needed.

This sample uses the PDF bundled with the application and a static translation file. No kernel or translation service runs here. Download the app to translate your own documents.

PDFMathReader on desktop, iPad, and iPhone

Your next paper.
In your language.

Open source and always improving. Choose your platform.

macOS

Apple Silicon and Intel

Download for Mac

Unzip and move to Applications.

Windows

64-bit and 32-bit portable editions

Download for Windows

Download and run the matching .exe.

Requirements and experimental features

Translation needs an available service and network access; some providers may charge API fees. Fast and Precise require their kernels to be installed through uv. Complex layouts can affect typesetting fidelity. See the project documentation for platform and service support.

Experimental features include paragraph continuation detection, local table-of-contents generation, and an optional remote zotero-pdf2zh server. The remote Precise server must be deployed separately and is not bundled. Scanned documents without a text layer need appropriate OCR support.

Full installation and usage guide