https://github.com/microsoft/markitdown

微软开发的 Python 工具，用于将 Office 文档或者 PDF 文件转换为 Markdown 格式。

markitdown path-to-file.pdf > document.md
markitdown path-to-file.pdf -o document.md
cat path-to-file.pdf | markitdown

from markitdown import MarkItDown

md = MarkItDown()
result = md.convert("test.xlsx")
print(result.text_content)

from markitdown import MarkItDown
from openai import OpenAI

client = OpenAI()
md = MarkItDown(llm_client=client, llm_model="gpt-4o")
result = md.convert("example.jpg")
print(result.text_content)