compressImage.js

function compressImage(image, scale, initalWidth, initalHeight){
    return new Promise((resolve, reject) => {
        const canvas = document.createElement("canvas");

        canvas.width = scale * initalWidth;
        canvas.height = scale * initalHeight;

        const ctx = canvas.getContext("2d");
        ctx.drawImage(image, 0, 0, canvas.width, canvas.height);
        
        ctx.canvas.toBlob((blob) => {
            resolve(blob);
        }, "image/png"); 
    }); 
}