# Source: https://trigger.dev/docs/guides/python/python-doc-to-markdown.md

> ## Documentation Index
> Fetch the complete documentation index at: https://trigger.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Convert documents to markdown using Python and MarkItDown

> Learn how to use Trigger.dev with Python to convert documents to markdown using MarkItDown.

## Overview

Convert documents to markdown using Microsoft's [MarkItDown](https://github.com/microsoft/markitdown) library. This can be especially useful for preparing documents in a structured format for AI applications.

## Prerequisites

* A project with [Trigger.dev initialized](/quick-start)
* [Python](https://www.python.org/) installed on your local machine. *This example requires Python 3.10 or higher.*

## Features

* A Trigger.dev task which downloads a document from a URL and runs the Python script which converts it to markdown
* A Python script to convert documents to markdown using Microsoft's [MarkItDown](https://github.com/microsoft/markitdown) library
* Uses our [Python build extension](/config/extensions/pythonExtension) to install dependencies and run Python scripts

## GitHub repo

<Card title="View the project on GitHub" icon="GitHub" href="https://github.com/triggerdotdev/examples/tree/main/python-doc-to-markdown-converter">
  Click here to view the full code for this project in our examples repository on GitHub. You can
  fork it and use it as a starting point for your own project.
</Card>

## The code

### Build configuration

After you've initialized your project with Trigger.dev, add these build settings to your `trigger.config.ts` file:

```ts trigger.config.ts theme={"theme":"css-variables"}
import { pythonExtension } from "@trigger.dev/python/extension";
import { defineConfig } from "@trigger.dev/sdk";

export default defineConfig({
  runtime: "node",
  project: "<your-project-ref>",
  // Your other config settings...
  build: {
    extensions: [
      pythonExtension({
        // The path to your requirements.txt file
        requirementsFile: "./requirements.txt",
        // The path to your Python binary
        devPythonBinaryPath: `venv/bin/python`,
        // The paths to your Python scripts to run
        scripts: ["src/python/**/*.py"],
      }),
    ],
  },
});
```

<Info>
  Learn more about executing scripts in your Trigger.dev project using our Python build extension
  [here](/config/extensions/pythonExtension).
</Info>

### Task code

This task uses the `python.runScript` method to run the `markdown-converter.py` script with the given document URL as an argument.

```ts src/trigger/convertToMarkdown.ts theme={"theme":"css-variables"}
import { task } from "@trigger.dev/sdk";
import { python } from "@trigger.dev/python";
import * as fs from "fs";
import * as path from "path";
import * as os from "os";

export const convertToMarkdown = task({
  id: "convert-to-markdown",
  run: async (payload: { url: string }) => {
    const { url } = payload;

    // STEP 1: Create temporary file with unique name
    const tempDir = os.tmpdir();
    const fileName = `doc-${Date.now()}-${Math.random().toString(36).substring(2, 7)}`;
    const urlPath = new URL(url).pathname;
    const extension = path.extname(urlPath) || ".docx";
    const tempFilePath = path.join(tempDir, `${fileName}${extension}`);

    // STEP 2: Download file from URL
    const response = await fetch(url);
    const buffer = await response.arrayBuffer();
    await fs.promises.writeFile(tempFilePath, Buffer.from(buffer));

    // STEP 3: Run Python script to convert document to markdown
    const pythonResult = await python.runScript("./src/python/markdown-converter.py", [
      JSON.stringify({ file_path: tempFilePath }),
    ]);

    // STEP 4: Clean up temporary file
    fs.unlink(tempFilePath, () => {});

    // STEP 5: Process result
    if (pythonResult.stdout) {
      const result = JSON.parse(pythonResult.stdout);
      return {
        url,
        markdown: result.status === "success" ? result.markdown : null,
        error: result.status === "error" ? result.error : null,
        success: result.status === "success",
      };
    }

    return {
      url,
      markdown: null,
      error: "No output from Python script",
      success: false,
    };
  },
});
```

### Add a requirements.txt file

Add the following to your `requirements.txt` file. This is required in Python projects to install the dependencies.

```txt requirements.txt theme={"theme":"css-variables"}
markitdown[all]
```

### The Python script

The Python script uses MarkItDown to convert documents to Markdown format.

```python src/python/markdown-converter.py theme={"theme":"css-variables"}
import json
import sys
import os
from markitdown import MarkItDown

def convert_to_markdown(file_path):
    """Convert a file to markdown format using MarkItDown"""
    # Check if file exists
    if not os.path.exists(file_path):
        raise FileNotFoundError(f"File not found: {file_path}")

    # Initialize MarkItDown
    md = MarkItDown()

    # Convert the file
    try:
        result = md.convert(file_path)
        return result.text_content
    except Exception as e:
        raise Exception(f"Error converting file: {str(e)}")

def process_trigger_task(file_path):
    """Process a file and convert to markdown"""
    try:
        markdown_result = convert_to_markdown(file_path)
        return {
            "status": "success",
            "markdown": markdown_result
        }
    except Exception as e:
        return {
            "status": "error",
            "error": str(e)
        }

if __name__ == "__main__":
    # Get the file path from command line arguments
    if len(sys.argv) < 2:
        print(json.dumps({"status": "error", "error": "No file path provided"}))
        sys.exit(1)

    try:
        config = json.loads(sys.argv[1])
        file_path = config.get("file_path")

        if not file_path:
            print(json.dumps({"status": "error", "error": "No file path specified in config"}))
            sys.exit(1)

        result = process_trigger_task(file_path)
        print(json.dumps(result))
    except Exception as e:
        print(json.dumps({"status": "error", "error": str(e)}))
        sys.exit(1)
```

## Testing your task

1. Create a virtual environment `python -m venv venv`
2. Activate the virtual environment, depending on your OS: On Mac/Linux: `source venv/bin/activate`, on Windows: `venv\Scripts\activate`
3. Install the Python dependencies `pip install -r requirements.txt`. *Make sure you have Python 3.10 or higher installed.*
4. Copy the project ref from your [Trigger.dev dashboard](https://cloud.trigger.dev) and add it to the `trigger.config.ts` file.
5. Run the Trigger.dev CLI `dev` command (it may ask you to authorize the CLI if you haven't already).
6. Test the task in the dashboard by providing a valid document URL.
7. Deploy the task to production using the Trigger.dev CLI `deploy` command.

## MarkItDown Conversion Capabilities

* Convert various file formats to Markdown:
  * Office formats (Word, PowerPoint, Excel)
  * PDFs
  * Images (with optional LLM-generated descriptions)
  * HTML, CSV, JSON, XML
  * Audio files (with optional transcription)
  * ZIP archives
  * And more
* Preserve document structure (headings, lists, tables, etc.)
* Handle multiple input methods (file paths, URLs, base64 data)
* Optional Azure Document Intelligence integration for better PDF and image conversion

## Learn more about using Python with Trigger.dev

<Card title="Python build extension" icon="code" href="/config/extensions/pythonExtension">
  Learn how to use our built-in Python build extension to install dependencies and run your Python
  code.
</Card>