GuideNode.js

How to Use the PDF to Word API in Node.js

Step-by-step guide to convert PDF files to Word documents (DOCX) using the Convert Fleet REST API in Node.js. Includes full code example with axios and form-data.

LanguageNode.js

Conversionpdf → docx

API ReferenceView Endpoint →

You need an API key to follow this guide. Get a free API key →

1Install Dependencies

Install the required npm packages: axios for HTTP requests and form-data for multipart file uploads.

bash

npm install axios form-data

2Get Your API Key

Sign up at convertfleet.com, go to your dashboard, and generate a free API key. Keep it secure — never expose it in client-side code.

3Write the Conversion Code

Use the following Node.js code to send a PDF file and receive a Word document in response.

javascript

const axios = require('axios');
const fs = require('fs');
const FormData = require('form-data');

async function convertPdfToWord(inputPath, outputPath) {
  const form = new FormData();
  form.append('file', fs.createReadStream(inputPath));
  form.append('to', 'docx');

  const response = await axios.post(
    'https://convertfleet.com/api/convert',
    form,
    {
      headers: {
        ...form.getHeaders(),
        'Authorization': 'Bearer YOUR_API_KEY',
      },
      responseType: 'arraybuffer',
    }
  );

  fs.writeFileSync(outputPath, response.data);
  console.log('PDF converted to Word successfully!');
}

convertPdfToWord('./input.pdf', './output.docx');

4Run the Script

Execute your script with Node.js. The output.docx file will appear in the same directory.

bash

node convert-pdf.js

5Handle Errors

Always wrap your API calls in try/catch to handle network errors, invalid API keys (401), or rate limiting (429).

javascript

try {
  await convertPdfToWord('./input.pdf', './output.docx');
} catch (error) {
  if (error.response?.status === 401) {
    console.error('Invalid API key. Check your Authorization header.');
  } else if (error.response?.status === 429) {
    console.error('Rate limit exceeded. Upgrade to Pro for unlimited conversions.');
  } else {
    console.error('Conversion failed:', error.message);
  }
}

That's it!

You've successfully integrated the Convert Fleet API. Check the API reference for the full list of parameters and error codes.

Related API Endpoints

PDF to Word API Convert File API Authentication API

More Integration Guides

PDF to Word API Example in Python REST API File Conversion in Python REST API Authentication Example PDF to Image API Example in Node.js

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