Convert Progressive Jpg to Lossless Jpg

convertImgWithSharp.js

/**
 * convert
 * Add any custom Image conversion logic
 * @param {String} assetPath file path to convert image
 * @returns {String} string path to converted image
 */
async function convert(assetPath) {

	return new Promise(async (resolve, reject) => {
		const outputPath = assetPath.replace(/media/g,'output');

		//convert image and change from progressive to lossless
		sharp(assetPath)
		.withMetadata() //keep all image data
		//.resize(300, 200)
		.toFile(outputPath, (err) => {
			if (err) {
				console.log('err:', err);
				reject();
			} else {
				resolve(outputPath);
			}
		});
	});
}