I need help - I can help - PDF displaying

Could somebody tell me why Quick PDF does not display the following PDF (just one horizontal line): https://drive.google.com/open?id=0B6Y6LNzVr4n9empXa0k2UENpRUU

var

AJpg: TJpegImage;

AMemStream: Tmemorystream;

APDF: TQuickPDF;

begin

AJpg := TJpegImage.create;

AMemStream := Tmemorystream.Create;

APDF := TQuickPDF.Create;

try

APDF.UnlockKey('...');

APDF.SetGDIPlusOptions(9, 1); //EnhanceThinLines

APDF.LoadFromFile('Line1-FOP.pdf','');

APDF.RenderPageToStream(100,1,1,AMemStream);

AMemStream.Seek(0,0);

Ajpg.LoadFromStream (AMemStream);

image1.Top :=0;

image1.Left:=0;

image1.Height := Ajpg.Height ;

image1.Width := Ajpg.Width;

image1.Picture.Assign(Ajpg);

finally

APDF.Free;

Ajpg.Free;

AMemStream.Free;

end;