public PdfObject(Stream pdfStream, string password)
{
if (pdfStream == null)
{
throw new ArgumentNullException(nameof(pdfStream));
}
PdfiumLibrary.Init();
_stream = pdfStream;
_streamId = StreamDictionary.Add(pdfStream);
var document = PdfiumLibrary.FPDF_LoadCustomDocument(pdfStream, password, _streamId);
if (document == IntPtr.Zero)
{
throw new PdfException(PdfiumLibrary.FPDF_GetLastError());
}
LoadDocument(document);
}