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Example 2: Compress a PDF file (medium image quality, medium compression) (Delphi)  

   uses ComObj;

   procedure TForm1.Button1Click(Sender: TObject);
     NVcomp : Variant;
     retVal : Integer;
     NVcomp := CreateOleObject('Neevia.PDFcompress');

     NVcomp.CI := 'jpx';
     NVcomp.CQ := 50;

     NVcomp.GI := 'jpx';
     NVcomp.GQ := 50;

     NVcomp.MI := 'jbig2';
     NVcomp.MQ := 5;

     // For better compression uncomment the line below
     // NVcomp.CreateObjectStreams := true;

     retVal := NVcomp.CompressPDF('c:\in.pdf', 'c:\out.pdf');
     if retVal <> 0 then
       Application.MessageBox(PChar('Error code=' + IntToStr(retVal)),'',0)

I was looking for a product that could place watermarks on very large PDF files (some of them over 30 thousand pages) in as less time as possible. After testing many tools I found Neevia PDFstamp. It did the job!

Avi Steinman

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