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| 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 | |
|  |