Set Zoom Factor for the First Page of the Document

Document open action is used to set zoom factor for the first page of the PDF document. Zoom factor is controlled with the pre-defined values in DestinationType enumeration. Actually, document open action means that when the PDF document is opened using a PDF viewer like Adobe Acrobat then how the first page of the PDF document should be displayed. Should it fit into the page? etc. DestinationType enumeration helps to obtain different effects.

It is always a two step process:

Instantiate Pdf instance by calling its empty constructor
Set the DestinationType property of Pdf instance to any of the pre-defined value in DestinationType enumeration

The pre-defined values of DestinationType enumeration are given below:

Values	Description
Retain	Retains the original type
FitPage	Fits the page
FitWidth	Fits the width
FitHeight	Fits the height
FitBox	Fits the box

Code Snippet

[C#]

//Instantiate Pdf instance

Pdf pdf1 = new Pdf();

//Set the DestinationType property of Pdf instance to any pre-defined value

pdf1.DestinationType = DestinationType.FitPage;

...

[VB.NET]

'Instantiate Pdf instance

Dim pdf1 As Pdf = New Pdf()

'Set the DestinationType property of Pdf instance to any pre-defined value

pdf1.DestinationType = DestinationType.FitPage

...

[Java]

//Instantiate Pdf instance

Pdf pdf1 = new Pdf();

//Set the DestinationType property of Pdf instance to any pre-defined value

pdf1.DestinationType = DestinationType.FitPage;

...

[XML]

...

</Pdf>