/// <summary>
/// Saves the <see cref="PdfDocument"/> to a <paramref name="stream"/>.
/// </summary>
/// <param name="version">
/// The new PDF file version of the saved file.
/// 14 for 1.4, 15 for 1.5, etc. Values smaller than 10 are ignored.
/// </param>
public bool Save(Stream stream, SaveFlags flags = SaveFlags.None, int version = 0)
{
return(PDFium.FPDF_SaveAsCopy(Handle, stream, flags, version));
}