saved picture cannot use

[mrqatom]

code:

const xhr = new XMLHttpRequest();
    xhr.open('GET', '/psd.psd', true);
    xhr.responseType = 'arraybuffer';
    xhr.addEventListener('load', function () {
      const buffer = xhr.response;
      const psd = readPsd(buffer);
      console.log(psd);
      const buffer2 = writePsd(psd);
      console.log("buffer:" + buffer.byteLength + " buffer2:" + buffer2.byteLength);
    }, false);
    xhr.send();

log:

The saved picture cannot be opened and the size has changed

[Agamnentzar]

Can you send me your PSD file so I can check it, the new buffer will not be the same due to some encoding differences when compressing the internal images, so that's expected.