This tutorial comprehensively explains how to add text field annotation in PDF using C#. Text field annotations enable users to add text to a specific area of a PDF file and are particularly useful when filling out forms or commenting on a particular section of a document. We will provide instructions on utilizing the annotation library and developing a basic program to insert text field annotation to PDF in C#. The following section outlines the steps involved in adding text fields to a PDF using the C# programming language.

Steps to Add Text Field Annotation in PDF using C#

1. Use NuGet package manager to install GroupDocs.Annotation for .NET to add text field annotation in PDF document
2. Add the reference of GroupDocs.Annotation namespace
3. Instantiate an object of the Annotator class by passing the PDF file’s path as an argument to its constructor
4. Instantiate an object of the TextFieldAnnotation class and set its properties such as position, page number, etc.
5. Call the Add method of the Annotator class and provide the TextFieldAnnotation object as its argument
6. Call the Save method of the Annotator class to save the PDF to the disk

Text field annotations can be very useful when filling out forms, adding comments, or providing additional details in a PDF document. The above-described steps are used to create text field annotation in PDF using C# and can be implemented on any system that supports .NET without requiring any additional software installation. Additionally, the library used in this tutorial is compatible with multiple platforms, allowing you to run the provided code example on any system.

Code to Add Text Field Annotation in PDF using C#

With a straightforward code example, the aforementioned section offered a thorough explanation of how to add text field annotation to PDF C#. After installing the document annotation library and making any required modifications to the input and output file paths, integrating the provided code example into your applications is a hassle-free process. Congratulations! You have successfully added a text field annotation to a PDF document using C#.

We have previously shared an article on how to insert arrow annotations into a PDF document. For more details, please refer to our guide on how to add arrow annotation in PDF using C#.