font issue

[Temperedscarf9]

Before you asking

• I have tried the PDFMathTranslate-next and give feedback in PDFMathTranslate-next
• I have searched the existing issues
• I spend at least 5 minutes for thinking and preparing
• I have thoroughly and completely read the wiki.
• I have carefully checked the issue, and it is unrelated to the network environment.

Environment

**OS**:Ubuntu 22.04.4
**Python**:3.11.13
**pdf2zh**:1.9.10

How to install pdf2zh

source

Describe the bug

Maybe it's a network problem. When I translated a document for the first time, the console output INFO:pdf2zh.high_level:use ​​font: seemed to be related to the font settings, but I tried the font path and it didn't have any effect. It always remained unchanged and ended the process after a few seconds.
Namespace(files=['/content/efficientnet.pdf'], debug=False, pages=None, vfont='', vchar='', lang_in='en', lang_out='zh', service='google', output='/content/', thread=4, interactive=False, share=False, flask=False, celery=False, authorized=None, prompt=None, compatible=False, onnx=None, serverport=None, dir=False, config=None, babeldoc=False, skip_subset_fonts=False, ignore_cache=False, mcp=False, sse=False)
[06/29/25 18:51:52] INFO INFO:pdf2zh.high_level:use font:

To Reproduce

1. execute !python3 -m pdf2zh.pdf2zh /content/efficientnet.pdf \ --output /content/
2. see errors

Expected behavior

No response

Relevant log output

Origin PDF file

No response

Anything else?

No response

[Temperedscarf9]

efficientnet.pdfThis is the input document, which can be downloaded from arxiv

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