var paper = require('paper'), path = require('path'), fs = require('fs'); var canvas = paper.createCanvas(612, 792, 'pdf'); paper.setup(canvas); with (paper) { fs.readFile('./in.json', { encoding: 'utf8' }, function (err, data) { if (err) throw err; project.importJSON(data); view.update(); fs.writeFile(path.resolve(__dirname, 'out.pdf'), canvas.toBuffer(), function (err) { if (err) throw err; console.log('Saved!'); }); }); }