How to: Delete Particular Markup Annotations from a Page

• Apr 08, 2019

This example shows how to delete text markup annotations created by a particular author.

Note

A complete sample project is available at https://github.com/DevExpress-Examples/how-to-delete-particular-markup-annotations-from-a-page-t549297

Program.cs

using DevExpress.Pdf;
using System.Linq;

namespace RemoveSpecificMarkupAnnotations
{

    class Program {
        static void Main(string[] args)
        {

            // Create a PDF Document Processor.
            using (PdfDocumentProcessor processor = new PdfDocumentProcessor())
            {

                // Load a document.
                processor.LoadDocument("..\\..\\Document.pdf");

                for (int i = 0; i <= processor.Document.Pages.Count; i++)
                {

                    // Remove Bill Smith's markup annotations from a page.
                    processor.DeleteMarkupAnnotations(processor.GetMarkupAnnotationData(i)
                    .Where(annotation => annotation.Author.Contains("Bill Smith")));

                    // Save the result document.
                    processor.SaveDocument("..\\..\\Result.pdf");
                }
            }
        }
    }
}

Program.vb

Imports DevExpress.Pdf
Imports System.Linq

Namespace RemoveSpecificMarkupAnnotations

    Friend Class Program
        Shared Sub Main(ByVal args() As String)

            ' Create a PDF Document Processor.
            Using processor As New PdfDocumentProcessor()

                ' Load a document.
                processor.LoadDocument("..\..\Document.pdf")

                For i As Integer = 0 To processor.Document.Pages.Count

                    ' Remove Bill Smith's markup annotations from a page.
                    processor.DeleteMarkupAnnotations(processor.GetMarkupAnnotationData(i).Where(Function(annotation) annotation.Author.Contains("Bill Smith")))

                    ' Save the result document.
                    processor.SaveDocument("..\..\Result.pdf")
                Next i
            End Using
        End Sub
    End Class
End Namespace