Add Polyline Annotation to Document

Introduction

GroupDocs.Annotation for .NET is a powerful tool that allows developers to annotate PDF and Microsoft Office documents programmatically. Among its features is the ability to add polyline annotations to documents, enhancing collaboration and document review processes.

Prerequisites

Before proceeding with this tutorial, make sure you have the following:

  • Visual Studio installed on your system.
  • Basic knowledge of C# programming language.
  • GroupDocs.Annotation for .NET library installed. You can download it from here.

Import Namespaces

using System;
using System.Collections.Generic;
using System.IO;
using GroupDocs.Annotation.Models;
using GroupDocs.Annotation.Models.AnnotationModels;
using GroupDocs.Annotation.Options;

Step 1: Define Output Path

First, define the output path where the annotated document will be saved.

string outputPath = Path.Combine("Your Document Directory", "result" + Path.GetExtension("input.pdf"));

Step 2: Initialize Annotator

Initialize the annotator by providing the input document name.

using (Annotator annotator = new Annotator("input.pdf"))
{

Step 3: Create Polyline Annotation Object

Create a polyline annotation object and set its properties such as position, message, opacity, pen color, pen style, and pen width.

PolylineAnnotation polyline = new PolylineAnnotation
{
    Box = new Rectangle(250, 35, 102, 12),
    CreatedOn = DateTime.Now,
    Message = "This is polyline annotation",
    Opacity = 0.7,
    PageNumber = 0,
    PenColor = 65535,
    PenStyle = PenStyle.Dot,
    PenWidth = 3,
    Replies = new List<Reply>
    {
        new Reply
        {
            Comment = "First comment",
            RepliedOn = DateTime.Now
        },
        new Reply
        {
            Comment = "Second comment",
            RepliedOn = DateTime.Now
        }
    },
    SvgPath = "M250.8280751173709,48.209295774647885l0.6986854460093896,0l0.6986854460093896,-1.3973708920187793l0.6986854460093896,0l0.6986854460093896,-1.3973708920187793l1.3973708920187793,-0.6986854460093896l0.6986854460093896,-0.6986854460093896l0.6986854460093896,0l2.096056338028169,-1.3973708920187793l3.493427230046948,-1.3973708920187793l0.6986854460093896,-0.6986854460093896l1.3973708920187793,-1.3973708920187793l0.6986854460093896,0l1.3973708920187793,-0.6986854460093896l0.6986854460093896,0l0.6986854460093896,-0.6986854460093896l0.6986854460093896,0l0.6986854460093896,0l0,-0.6986854460093896l0.6986854460093896,0l0.6986854460093896,0l1.3973708920187793,0l0,-0.6986854460093896l0.6986854460093896,0l1.3973708920187793,0l0.6986854460093896,0l1.3973708920187793,0l0.6986854460093896,0l2.096056338028169,-0.6986854460093896l1.3973708920187793,0l0.6986854460093896,0l0.6986854460093896,0l1.3973708920187793,0l1.3973708920187793,0l1.3973708920187793,0l2.096056338028169,0l5.589483568075117,0l1.3973708920187793,0l2.096056338028169,0l0.6986854460093896,0l1.3973708920187793,0l0.6986854460093896,0l1.3973708920187793,0l1.3973708920187793,0l0.6986854460093896,0.6986854460093896l1.3973708920187793,0l2.096056338028169,1.3973708920187793l0.6986854460093896,0l0.6986854460093896,0l0,0.6986854460093896l1.3973708920187793,0l0.6986854460093896,0.6986854460093896l1.3973708920187793,0.6986854460093896l0,0.6986854460093896l0.6986854460093896,0l1.3973708920187793,0.6986854460093896l1.3973708920187793,0.6986854460093896l3.493427230046948,0.6986854460093896l1.3973708920187793,0.6986854460093896l2.096056338028169,0.6986854460093896l1.3973708920187793,0.6986854460093896l1.3973708920187793,0l1.3973708920187793,0.6986854460093896l0.6986854460093896,0l0.6986854460093896,0.6986854460093896l1.3973708920187793,0l0.6986854460093896,0l0.6986854460093896,0l2.7947417840375586,0l1.3973708920187793,0l0.6986854460093896,0l1.3973708920187793,0l0.6986854460093896,0l0.6986854460093896,0l1.3973708920187793,0l0.6986854460093896,0l2.7947417840375586,0l0.6986854460093896,0l2.7947417840375586,0l1.3973708920187793,0l0.6986854460093896,0l0.6986854460093896,0l0.6986854460093896,0l0.6986854460093896,0l0.698685
4460093896,0l0.6986854460093896,0l0.6986854460093896,-0.6986854460093896l0.6986854460093896,0"
};

Step 4: Add Polyline Annotation

Add the polyline annotation to the document using the annotator object.

annotator.Add(polyline);

Step 5: Save Document

Save the annotated document to the specified output path.

annotator.Save(outputPath);

Step 6: Display Success Message

Display a message confirming the successful saving of the document.

Console.WriteLine($"\nDocument saved successfully.\nCheck output in {outputPath}.");

Conclusion

In this tutorial, we have learned how to add a polyline annotation to a document using GroupDocs.Annotation for .NET. This feature enhances collaboration and document review processes, making it easier for users to communicate feedback and suggestions effectively.

FAQ’s

Is GroupDocs.Annotation for .NET compatible with all document formats?

GroupDocs.Annotation for .NET supports popular document formats such as PDF and Microsoft Office formats including Word, Excel, and PowerPoint.

Can I customize the appearance of annotations?

Yes, you can customize various properties of annotations such as color, opacity, style, and width to suit your requirements.

Does GroupDocs.Annotation for .NET offer a free trial?

Yes, you can avail of a free trial of GroupDocs.Annotation for .NET by visiting this link.

Where can I find documentation for GroupDocs.Annotation for .NET?

You can find the documentation for GroupDocs.Annotation for .NET here.

You can get support by visiting the GroupDocs.Annotation forum here.

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