How to convert ImageSource to Byte array?

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If you are using Xamarin, you can use this:

public async Task<byte[]> ConvertImageSourceToBytesAsync(ImageSource imageSource)
{
    Stream stream = await ((StreamImageSource)imageSource).Stream(CancellationToken.None);
    byte[] bytesAvailable = new byte[stream.Length];
    stream.Read(bytesAvailable, 0, bytesAvailable.Length);

    return bytesAvailable;
}

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