PDF识别

curl --location -g --request POST 'http://api.example.com/v1/chat/completions' \
--header 'Authorization: Bearer sk-xxx' \
--header 'Content-Type: application/json' \
--data-raw '{
    "model": "gemini-2.5-flash",
    "messages": [
        {
            "role": "user",
            "content": [
                {
                    "type": "text",
                    "text": "文档说了什么，中文回答"
                },
                {
                    "type": "image_url",
                    "image_url": {
                        "url": "https://www.bt.cn/data/api-doc.pdf"
                    }
                }
            ]
        }
    ]
}'