/// <summary>
/// Implements saving a PDF file.
/// </summary>
void DoSave(PdfWriter writer)
{
if (this.pages == null || this.pages.Count == 0)
throw new InvalidOperationException("Cannot save a PDF document with no pages.");
try
{
bool encrypt = this.securitySettings.DocumentSecurityLevel != PdfDocumentSecurityLevel.None;
if (encrypt)
{
PdfStandardSecurityHandler securityHandler = this.securitySettings.SecurityHandler;
if (securityHandler.Reference == null)
this.irefTable.Add(securityHandler);
else
Debug.Assert(this.irefTable.Contains(securityHandler.ObjectID));
this.trailer.Elements[PdfTrailer.Keys.Encrypt] = this.securitySettings.SecurityHandler.Reference;
}
else
this.trailer.Elements.Remove(PdfTrailer.Keys.Encrypt);
PrepareForSave();
if (encrypt)
this.securitySettings.SecurityHandler.PrepareEncryption();
writer.WriteFileHeader(this);
PdfReference[] irefs = this.irefTable.AllReferences;
int count = irefs.Length;
for (int idx = 0; idx < count; idx++)
{
PdfReference iref = irefs[idx];
#if DEBUG_
if (iref.ObjectNumber == 378)
GetType();
#endif
iref.Position = writer.Position;
iref.Value.WriteObject(writer);
}
int startxref = writer.Position;
this.irefTable.WriteObject(writer);
writer.WriteRaw("trailer\n");
this.trailer.Elements.SetInteger("/Size", count + 1);
this.trailer.WriteObject(writer);
writer.WriteEof(this, startxref);
//if (encrypt)
//{
// this.state &= ~DocumentState.SavingEncrypted;
// //this.securitySettings.SecurityHandler.EncryptDocument();
//}
}
finally
{
if (writer != null)
{
writer.Stream.Flush();
// DO NOT CLOSE WRITER HERE
//writer.Close();
}
}
}
