public static void EnsureLoaded()
{
lock (_syncRoot)
{
if (_library is null)
{
_library = new PdfLibrary();
}
}
}
private void LoadFile(Stream stream, string password)
{
PdfLibrary.EnsureLoaded();
_stream = stream ?? throw new ArgumentNullException(nameof(stream));
_id = StreamManager.Register(stream);
var document = NativeMethods.FPDF_LoadCustomDocument(stream, password, _id);
if (document == IntPtr.Zero)
{
throw new PdfException((PdfError)NativeMethods.FPDF_GetLastError());
}
LoadDocument(document);
}