make JPGs to PDF

makePDF.mjs

import PDFDocument from 'pdfkit';
import fs from 'fs';

const pageProp = {
    size: 'A4',
    layout: 'landscape',
    autoFirstPage: false,
};
const doc = new PDFDocument(pageProp);
doc.pipe(fs.createWriteStream('./document.pdf'));

fs.promises.readdir('.')
.then(files => files.filter(file => file.endsWith('.jpg')))
.then(files => files.forEach((file, i) => {
    doc.addPage(pageProp);
    doc.image(file, 0, 0, { fit: [842, 596], align: 'center', valign: 'center'});
}))
.then(() => doc.end());