Using word-extractor on browser

Install word-extractor and blob-to-buffer:

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npm install --save word-extractor blob-to-buffer

Install browserify dependendcies:

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npm install --save assert buffer events path-browserify process stream-browserify util browserify-zlib

Add webpack fallback configuration:

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module.exports = {
  // omitted
  resolve: {
    fallback: {
      assert: require.resolve('assert'),
      buffer: require.resolve('buffer'),
      events: require.resolve('events'),
      path: require.resolve('path-browserify'),
      process: require.resolve('process/browser'),
      stream: require.resolve('stream-browserify'),
      util: require.resolve('util'),
      zlib: require.resolve('browserify-zlib'),
    },
  },
};

Read a file with File API and extract from it

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const blobToBuffer = require('blob-to-buffer');

// acquire file (`File` object) somehow
blobToBuffer(file, (error, buffer) => {
  if (error) {
    // error handling
  } else {
    const wordExtractor = new WordExtractor();
    wordExtractor.extract(buffer).then((doc) => {
      // play with the document
    }).catch(() => {
      // error handling
    });
  }
});