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179eccc | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | Some questions are frequently asked, so we have provided a list for users who encounter similar issues.
## Is a GPU required?
- **Question**:
As the program uses artificial intelligence to recognize and extract documents, is GPU required?
- **Answer**:
**GPU is not required.** But if you have a GPU, the program will automatically use it for higher performance.
## Downloading interrupted?
- **Question**:
I encountered the following interrupt error while downloading the model. What should I do?

- **Answer**:
The network is receiving interference, please use a stable network link or try to bypass network intervention.
## How to update to the latest version?
- **Question**:
I want to use some of the features of the latest version, how do I update it?
- **Answer**:
`pip install -U pdf2zh`
## The following files do not exist: example.pdf
- **Issue**:
When executing the program, users would have the following outputs: `The following files do not exist: example.pdf` if the document was not found.
- **Solution**:
- Open the command line in the directory where the file is located, or
- Enter the full path of the file directly after pdf2zh, or
- Use the interactive mode `pdf2zh -i` to drag and drop files directly
## SSL Error and Other Network Issues
- **Issue**:
When downloading hugging face models, users in China may get network error. For example, in [issue #55](https://github.com/PDFMathTranslate-next/PDFMathTranslate-next/issues/55), [#70](https://github.com/PDFMathTranslate-next/PDFMathTranslate-next/issues/70).
- **Solution**:
- [Bypass GFW](https://github.com/clash-verge-rev/clash-verge-rev).
- [Use Hugging Face Mirror](https://hf-mirror.com/).
- [Use Portable version](https://github.com/PDFMathTranslate-next/PDFMathTranslate-next?tab=readme-ov-file#method-ii-portable).
- [Use Docker instead](https://github.com/PDFMathTranslate-next/PDFMathTranslate-next#docker).
- [Update Certificates](https://stackoverflow.com/questions/51925384/unable-to-get-local-issuer-certificate-when-using-requests), as suggested in [issue #55](https://github.com/PDFMathTranslate-next/PDFMathTranslate-next/issues/55).
## Localhost is not accessible
Please see below.
## Error launching GUI using 0.0.0.0
- **Issue**:
Using proxy software in global mode may prevent Gradio from starting properly. For example, in [issue #77](https://github.com/PDFMathTranslate-next/PDFMathTranslate-next/issues/77).
- **Solution**:
Use rule mode
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