Titanium - iOS: Create a PDF from an image

app.js

import TiPDFMerge from 'ti.pdfmerge';

const win = Ti.UI.createWindow({
    backgroundColor: '#fff'
});

const btn = Ti.UI.createButton({
    title: 'Trigger'
});

btn.addEventListener('click', () => {
    // Create an image with green background and red border (to check if it matches the bounds)
    const img = Ti.UI.createView({ backgroundColor: 'red', width: 2000, height: 1000 });
    img.add(Ti.UI.createView({ width: 1800, height: 800, backgroundColor: 'green' }));

    // Generate the PDF
    const pdf = TiPDFMerge.pdfFromImage({ image: img.toImage() });

    // Save it to a file
    const file = Ti.Filesystem.getFile(Ti.Filesystem.applicationCacheDirectory, 'test.pdf');
    file.write(pdf);

    // Print the path for debugging purposes
    console.warn(file.nativePath);
});

win.add(btn);
win.open();