Convert a PDF document to separate images

pdfimg.js

const PDFImage = require('pdf-image').PDFImage;
const pdfImage = new PDFImage('./input/document.pdf');

const convert = (page) => {
  return pdfImage.convertPage(page);
}

let canConvert = true;
let currentPage = 0;

setInterval(() => {
  if (canConvert) {
    canConvert = false;
    convert(currentPage).then((path) => {
      console.log(path);
      currentPage++;
      canConvert = true;
    });
  }
}, 1000);