Export PDF Annotations in Node.js

import fs from 'node:fs';
import { load } from '@pspdfkit/nodejs';

const pdfDoc = fs.readFileSync('source.pdf');
const myInstantJSON = JSON.parse(
	fs.readFileSync('instantjson.json', 'utf-8'),
);

const instance = await load({
	document: pdfDoc,
	instantJSON: myInstantJSON,
});
const output = await instance.exportInstantJSON();
await instance.close();

fs.writeFileSync('output.json', JSON.stringify(output));