GdPicture.NET.14~GdPicture14.GdPicturePDF~FlattenVisibleOCGs - FlattenVisibleOCGs Method (GdPicturePDF) -

public GdPictureStatus FlattenVisibleOCGs()

public function FlattenVisibleOCGs(): GdPictureStatus;

public function FlattenVisibleOCGs() : GdPictureStatus;

public: GdPictureStatus FlattenVisibleOCGs();

public:
GdPictureStatus FlattenVisibleOCGs();

'Declaration
 
Public Function FlattenVisibleOCGs() As GdPictureStatus

Return Value

A member of the GdPictureStatus enumeration. If the method has been successfully followed, then the return value is GdPictureStatus.OK.

We strongly recommend always checking this status first.

This method is only allowed for use with non-encrypted documents.

Flattening all visible layers and removing all hidden ones included in the current document.

VB.NET
C#

Using gdpicturePdf As GdPicturePDF = New GdPicturePDF()
    gdpicturePDF.LoadFromFile("document.pdf", False)
    gdpicturePDF.FlattenVisibleOCGs()
    MessageBox.Show("The number of layers available: " + gdpicturePDF.GetOCGCount(), "Flattening visible layers", MessageBoxButtons.OK, MessageBoxIcon.Information)
    gdpicturePDF.SaveToFile("output.pdf")
End Using

using (GdPicturePDF gdpicturePdf = new GdPicturePDF())
{
    gdpicturePDF.LoadFromFile("document.pdf", false);
    gdpicturePDF.FlattenVisibleOCGs();
    MessageBox.Show("The number of layers available: " + gdpicturePDF.GetOCGCount(), "Flattening visible layers", MessageBoxButtons.OK, MessageBoxIcon.Information);
    gdpicturePDF.SaveToFile("output.pdf");
}

Reference

GdPicturePDF Class
GdPicturePDF Members
GetOCGCount Method