How i can reduce size or stream of image in xamarin forms?

var file = await Plugin.Media.CrossMedia.Current.PickPhotoAsync(new Plugin.Media.Abstractions.PickMediaOptions
{
PhotoSize = Plugin.Media.Abstractions.PhotoSize.Medium
});

    if (file == null)
        return;


    AppApplication.Instance().NewImage = file.GetStream();

    ProfileIcon.Source = ImageSource.FromStream(() =>
    {
        var stream = file.GetStream();
        file.Dispose();
        return stream;
    });

I am trying to reduce size of image which i am selecting from gallery using Plugin.media
How i can reduce size or stream of image in xamarin forms?