PdfDocumentFacade.FlattenAnnotations(Func<PdfAnnotationFacade, Boolean>) Method

Flattens all annotations that meet the specified criteria.

Namespace: DevExpress.Pdf

Assembly: DevExpress.Pdf.v21.1.Core.dll

NuGet Package: DevExpress.Pdf.Core

Declaration

C#

public void FlattenAnnotations(
    Func<PdfAnnotationFacade, bool> predicate
)

VB.NET

Public Sub FlattenAnnotations(
    predicate As Func(Of PdfAnnotationFacade, Boolean)
)

Parameters

Name	Type	Description
predicate	Func<PdfAnnotationFacade, Boolean>	Defines a set of criteria for the PdfAnnotationFacade object.

Remarks

The code sample below flattens annotations that are located on the lower half of the page:

C#

using (PdfDocumentProcessor processor = new PdfDocumentProcessor())
{
  //Load a document:
  processor.LoadDocument("..\\..\\Document.pdf");
  PdfDocumentFacade documentFacade = processor.DocumentFacade;

  double halfPage = processor.Document.Pages[0].CropBox.Top / 2;
  documentFacade.FlattenAnnotations(x => x.Rectangle.Top < halfPage);
  //Save the result:
  processor.SaveDocument("..\\..\\Result.pdf");
}
System.Diagnostics.Process.Start("..\\..\\Result.pdf");

VB.NET

Using processor As New PdfDocumentProcessor()
  'Load a document:
  processor.LoadDocument("..\..\Document.pdf")
  Dim documentFacade As PdfDocumentFacade = processor.DocumentFacade

  Dim halfPage As Double = processor.Document.Pages(0).CropBox.Top / 2
  documentFacade.FlattenAnnotations(Function(x) x.Rectangle.Top < halfPage)
  'Save the result:
  processor.SaveDocument("..\..\Result.pdf")
End Using
System.Diagnostics.Process.Start("..\..\Result.pdf")