How to set default scaling to 100% using iTextSharp 4.0.2?

I want a PDF reader (Adobe Reader) to open a PDF file with automatic scaling up to 100%.



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I found this piece of code while researching iTextSharp for myself and found 2 people referencing Open Actions. I've included a snippet from below:

PdfWriter writer = PdfWriter.GetInstance(doc, HttpContext.Current.Response.OutputStream);

//this creates a new destination to send the action to when the document is opened. The zoom in this instance is set to 0.75f (75%). Again I use doc.PageSize.Height to set the y coordinate to the top of the page. PdfDestination.XYZ is a specific PdfDestination Type that allows us to set the location and zoom.
PdfDestination pdfDest = new PdfDestination(PdfDestination.XYZ, 0, doc.PageSize.Height, 0.75f);

//open our document

//here you put all the information you want to write to your PDF

//create a new action to send the document to our new destination.
PdfAction action = PdfAction.GotoLocalPage(1, pdfDest, writer);

//set the open action for our writer object

//finally, close our document




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