pdf2zh

PDFMathTranslate

PDF scientific paper translation and bilingual comparison based on font rules and deep learning, preserving formula and figure layout.

• Retain formulas and charts.

• Preserve table of contents.

• Support multiple translation services.

Installation

pip install pdf2zh

Usage

Execute the translation command in the command line to generate the translated document example-zh.pdf and the bilingual document example-dual.pdf in the current directory.

Translate the entire document

pdf2zh example.pdf

Translate part of the document

pdf2zh example.pdf -p 1-3,5

Translate with the specified language

See Languages Codes.

pdf2zh example.pdf -li en -lo ja

Translate with Ollama

pdf2zh example.pdf -s gemma2

Use regex to specify formula fonts and characters that need to be preserved

pdf2zh BDA3.pdf -f "(CM[^RT].*|MS.*|XY.*|MT.*|BL.*|.*0700|.*0500|.*Italic)" -c "(\(|\||\)|\+|=|\d|[\u0080-\ufaff])"

Acknowledgement

Document merging: PyMuPDF

Document parsing: Pdfminer.six

Document extraction: MinerU

Multi-threaded translation: MathTranslate

Layout parsing: DocLayout-YOLO

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