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PDF scientific paper translation and bilingual comparison.
Feel free to provide feedback in GitHub Issues or Telegram Group.
For details on how to contribute, please consult the Contribution Guide.
[!NOTE]
2.0 Moved to a new repository under the organization: PDFMathTranslate/PDFMathTranslate-next
Version 2.0 official release has been published.
-cp (by @reycn)
You can try our application out using either of the following demos:
Note that the computing resources of the demo are limited, so please avoid abusing them.
For different use cases, we provide distinct methods to use our program:
UV install
Python installed (3.10 <= version <= 3.12)
Install our package:
bash
pip install uv
uv tool install --python 3.12 pdf2zh
bash
pdf2zh document.pdf
Windows exe
Download pdf2zh-version-win64.zip from release page
Unzip and double-click pdf2zh.exe to run.
Graphic user interface
Python installed (3.10 <= version <= 3.12)
Install our package:
pip install pdf2zh
bash
pdf2zh -i
bash
http://localhost:7860/

See documentation for GUI for more details.
Docker
Pull and run:
bash
docker pull byaidu/pdf2zh
docker run -d -p 7860:7860 byaidu/pdf2zh
http://localhost:7860/
For docker deployment on cloud service:
See Zotero PDF2zh for more details.
Commandline
Python installed (3.10 <= version <= 3.12)
bash
pip install pdf2zh
bash
pdf2zh document.pdf
[!TIP]
If you're using Windows and cannot open the file after downloading, please install vc_redist.x64.exe and try again.
If you cannot access Docker Hub, please try the image on GitHub Container Registry.
bash docker pull ghcr.io/byaidu/pdfmathtranslate docker run -d -p 7860:7860 ghcr.io/byaidu/pdfmathtranslate
The present program needs an AI model(wybxc/DocLayout-YOLO-DocStructBench-onnx) before working and some users are not able to download due to network issues. If you have a problem with downloading this model, we provide a workaround using the following environment variable:
set HF_ENDPOINT=https://hf-mirror.com
For PowerShell user:
$env:HF_ENDPOINT = https://hf-mirror.com
If the solution does not work to you / you encountered other issues, please refer to frequently asked questions.
Execute the translation command in the command line to generate the translated document example-mono.pdf and the bilingual document example-dual.pdf in the current working directory. Use Google as the default translation service. More support translation services can find HERE.

In the following table, we list all advanced options for reference:
| Option | Function | Example |
|---|---|---|
| files | Local files | pdf2zh ~/local.pdf |
| links | Online files | pdf2zh http://arxiv.org/paper.pdf |
-i |
Enter GUI | pdf2zh -i |
-p |
Partial document translation | pdf2zh example.pdf -p 1 |
-li |
Source language | pdf2zh example.pdf -li en |
-lo |
Target language | pdf2zh example.pdf -lo zh |
-s |
Translation service | pdf2zh example.pdf -s deepl |
-t |
Multi-threads | pdf2zh example.pdf -t 1 |
-o |
Output dir | pdf2zh example.pdf -o output |
-f, -c |
Exceptions | pdf2zh example.pdf -f "(MS.*)" |
-cp |
Compatibility Mode | pdf2zh example.pdf --compatible |
--skip-subset-fonts |
Skip font subset | pdf2zh example.pdf --skip-subset-fonts |
--ignore-cache |
Ignore translate cache | pdf2zh example.pdf --ignore-cache |
--share |
Public link | pdf2zh -i --share |
--authorized |
Authorization | pdf2zh -i --authorized users.txt [auth.html] |
--prompt |
Custom Prompt | pdf2zh --prompt [prompt.txt] |
--onnx |
[Use Custom DocLayout-YOLO ONNX model] | pdf2zh --onnx [onnx/model/path] |
--serverport |
[Use Custom WebUI port] | pdf2zh --serverport 7860 |
--dir |
[batch translate] | pdf2zh --dir /path/to/translate/ |
--config |
configuration file | pdf2zh --config /path/to/config/config.json |
--serverport |
[custom gradio server port] | pdf2zh --serverport 7860 |
--babeldoc |
Use Experimental backend BabelDOC to translate | pdf2zh --babeldoc -s openai example.pdf |
--mcp |
Enable MCP STDIO mode | pdf2zh --mcp |
--sse |
Enable MCP SSE mode |
$ claude mcp add PDFMathTranslate \
-- python -m otcore.mcp_server <graph>