https://huggingface.co/Asukaa02/Gradio/resolve/main/test/test_files/sample_file.pdf
hf download hf://Asukaa02/Gradio/test/test_files/sample_file.pdf
curl -L -o sample_file.pdf https://huggingface.co/Asukaa02/Gradio/resolve/main/test/test_files/sample_file.pdf
