const PDFExtract = require('pdf.js-extract').PDFExtract;
const pdfExtract = new PDFExtract();
const options = {}; 

const fs = require('fs');

var args = process.argv.slice(2)
//console.log(args)
if (args.length < 1) return console.log('missing input pdf filename');

const filename = args[0]
const output = filename+'_text.json'
pdfExtract.extract(filename, options, (err, data) => {
  if (err) return console.log(err);
	fs.writeFileSync(output, JSON.stringify(data) )
});