PdfDocument.ApplyRedaction(Int32, RedactionAnnotation[]) Method

Applies redaction annotations to a specified page.

Namespace: DevExpress.Docs.Pdf

Assembly: DevExpress.Docs.Pdf.v26.1.dll

Declaration

C#

public void ApplyRedaction(
    int pageIndex,
    params RedactionAnnotation[] annotations
)

VB.NET

Public Sub ApplyRedaction(
    pageIndex As Integer,
    ParamArray annotations As RedactionAnnotation()
)

Parameters

Name	Type	Description
pageIndex	Int32	The index of the page where redaction annotations are applied.
annotations	RedactionAnnotation[]	An array of redaction annotations to apply.

Example

How to: Apply Redaction Annotations

The following code snippet applies all redaction annotations on the first page:

C#

using DevExpress.Docs.Pdf;
using System.IO;
using System.Linq;

using (PdfDocument pdfDocument =
    new PdfDocument(File.OpenRead(
        @"C:\Documents\document_001.pdf")))
{
    var page = pdfDocument.Pages[0];
    // Get all redaction annotations on the page.
    RedactionAnnotation[] redactions = page.Annotations
        .OfType<RedactionAnnotation>()
        .ToArray();

    // Apply redaction annotations.
    pdfDocument.ApplyRedaction(
        0, redactions);

    using (FileStream stream =
        File.Create("UpdatedDocument.pdf"))
    {
        pdfDocument.Save(stream);
    }
}

VB.NET

Imports DevExpress.Docs.Pdf
Imports System.IO
Imports System.Linq

Using pdfDocument As New PdfDocument(
    File.OpenRead("C:\Documents\document_001.pdf"))
    Dim page = pdfDocument.Pages(0)
    ' Get all redaction annotations on the page.
    Dim redactions As RedactionAnnotation() = _
        page.Annotations _
        .OfType(Of RedactionAnnotation)() _
        .ToArray()

    ' Apply redaction annotations.
    pdfDocument.ApplyRedaction(0, redactions)

    Using stream As FileStream = _
        File.Create("UpdatedDocument.pdf")
        pdfDocument.Save(stream)
    End Using
End Using