How to Add Squiggly Annotation in PDF using C#

The purpose of this tutorial is to demonstrate the procedure how to add squiggly annotation in PDF using C#. Squiggly annotations are useful for highlighting text or areas in a document to draw attention or indicate potential issues. By following the workflow presented in this tutorial, you will gain the knowledge and skills required to implement annotation functionality. We will provide a step-by-step guide on setting up the annotation library and showcase a code example that illustrates how to insert squiggly annotation to PDF in C#.

Steps to Add Squiggly Annotation in PDF using C#

  1. To incorporate squiggly annotations into PDF documents, install GroupDocs.Annotation for .NET using the NuGet package manager
  2. Add reference of GroupDocs.Annotation namespace into your project for adding squiggly annotations
  3. Instantiate the Annotator class by passing the path of the PDF file as an argument to its constructor
  4. Create an instance of the SquigglyAnnotation class and define the necessary attributes, such as the position and page number
  5. Call the Annotator.Add method and pass the object of SquigglyAnnotation class as an argument
  6. Use the Annotator.Save method to save the resulting PDF to the disk

You can quickly and easily create squiggly annotation in PDF using C# by following the above instructions and installing the annotation library on any machine. As long as.NET is present, these steps work with widely used operating systems like Windows, macOS, and Linux. To incorporate wavy annotations into a PDF file, no further software needs to be installed. Additionally, the library used in the example code provided is cross-platform, guaranteeing compatibility with different operating systems.

Code to Add Squiggly Annotation in PDF using C#

We provided a thorough tutorial and code of C# to add squiggly annotation in PDF in the section above, along with a clear and succinct code example. Integrating the code into your applications should go smoothly after installing the document annotation library and changing the input and output file directories to meet your needs. Congratulations! Using C#, you were able to add a wavy annotation to a PDF document.

An article that we’ve previously published offers a thorough description of how to use C# programming to insert a point annotation in a PDF. We suggest consulting our comprehensive guide on how to add point annotation to PDF using C# for more understanding.

 English