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                <h1>Drag & Drop Binary-embedded SUKIYAKI Picture(s)</h1>



                img {
    display: block;

a {
    text-decoration: none;

a:hover {
    opacity: .5;



                import dragAndDrop             from '/tsmallfield/pen/MWEoByX.js';
import loadImage               from '/tsmallfield/pen/dyVRjNP.js';
import fileToBase64URL         from '/tsmallfield/pen/PoJjBbW.js';
import imageToPixelArrayBuffer from '/tsmallfield/pen/XWegBNo.js';
import extractDataFromPixels   from '/tsmallfield/pen/YzrQjGy.js';

dragAndDrop(files => files.forEach(async file => {
    if (!/\.png$/i.test( {
        console.error(`INVALID FILE: ${}`);
    const b64 = await fileToBase64URL(file);
    const img = await loadImage(b64);
    const pxls = imageToPixelArrayBuffer(
        img, img.width, img.height
    const arrayBuffer = extractDataFromPixels(pxls);
    const embeddedByteLength = new DataView(arrayBuffer).getUint32(0, true);
    const embeddedArrayBuffer = arrayBuffer.slice(4, 4 + embeddedByteLength);
    const blob = new Blob([embeddedArrayBuffer], { type: 'application/octet-stream' });
    const url  = URL.createObjectURL(blob);
    const a    = document.createElement('a');
    const name =\.png$/, '.bin'); = name;
    a.href = url;
    a.appendChild(document.createTextNode(`Click to Download ${name}`));