Delphi: How to print a PDF without showing it?

Question

I have been looking online for some time now, but I still haven\'t figured out how to print a PDF file in Delphi without showing the document itself, or a print dialog. I ju

Answer 1

Printing a PDF to a printer without attempting to use Adobe Reader from Delphi can be done using Debenu Quick PDF Library, which supports all versions of Delphi from 4 to XE8. Sample code for printing a PDF programmatically without previewing it first:

procedure TForm6.PrintDocumentClick(Sender: TObject);
var
iPrintOptions: Integer;
begin
  DPL := TDebenuPDFLibrary1115.Create;
  try
    UnlockResult := DPL.UnlockKey('...'); // Add trial license key here
    if UnlockResult = 1 then
      begin
          // Load your file
          DPL.LoadFromFile('test.pdf', '');

          // Configure print options
          iPrintOptions := DPL.PrintOptions(0, 0, 'Printing Sample');

          // Print the current document to the default printing
          // using the options as configured above
          DPL.PrintDocument(DPL.GetDefaultPrinterName(), 1, 1, iPrintOptions);
      end;
    finally
    DPL.Free;
  end;
end;

More advanced printing options are also available using the customer printer functions. It's not a free SDK, but it will do exactly what you want.