pdf.js/examples/webpack/package.json

{
  "name": "webpack-pdf.js-example",
  "version": "0.1.0",
  "scripts": {
    "build": "webpack"
  },
  "devDependencies": {
    "webpack": "~1.12.9",
    "pdfjs-dist": "../../node_modules/pdfjs-dist"
  }
}