The objective of this tutorial is to illustrate the process how to add point annotation in PDF using C#. Point annotations in PDF documents allow you to mark specific points on a page, providing additional information or highlighting important areas. Whether you want to indicate a specific location, draw attention to a particular detail, or annotate a key point, adding point annotations can enhance the usability and clarity of your PDF files. We will guide you through the step-by-step setup of the annotation library and present a code example demonstrating how to insert point annotation to PDF in C#.

Steps to Add Point Annotation in PDF using C#

1. Install GroupDocs.Annotation for .NET via the NuGet package manager to add point annotation into PDF
2. Include reference of GroupDocs.Annotation namespace
3. Create an instance of the Annotator class by providing the path of the PDF file as a parameter to its constructor
4. Instantiate the PointAnnotation class and specify the required attributes, such as the position and page number
5. Call the Annotator.Add method and pass the PointAnnotation object as an argument
6. Call the Annotator.Save method to save the output PDF to disk

By following the aforementioned instructions and installing the annotation library on any computer, you can effortlessly and promptly create point annotation in PDF using C#. These steps are compatible with widely-used operating systems such as Windows, macOS, and Linux, as long as .NET is installed. There is no need to install any supplementary software to incorporate point annotations into a PDF file. Furthermore, the library utilized in the provided code example is cross-platform, guaranteeing compatibility across diverse systems.

Code to Add Point Annotation in PDF using C#

In the previous section, we provided an extensive guide on how to add point annotation in PDF C# along with a clear and concise code example. After installing the document annotation library and adjusting the input and output file paths according to your needs, integrating the code into your applications should be a seamless process. Congratulations! You have successfully added a point annotation to a PDF file using C#.

We have previously released an article detailing the process of inserting a redaction annotation in a PDF using C#. For more in-depth information, please refer to our comprehensive guide on how to add redaction annotation to PDF using C#.