You can use the original image size or select the 'Change width and height' option and enter a custom image size. Set target image format, image quality and image size. You can use file analyzer to get source image's detailed information such as image size, resolution, quality and transparent color.Ģ. Click the 'Choose Files' button to select multiple files on your computer or click the 'URL' button to choose an online file from URL, Google Drive or Dropbox.