How to Load Custom Fonts in GroupDocs.Annotation for .NET

Introduction

When working on projects that require precise document annotations, the default fonts might not meet your needs. GroupDocs.Annotation for .NET provides a powerful solution for integrating custom fonts into your documents, ensuring they look exactly as intended when processed.

This guide will walk you through using GroupDocs.Annotation to seamlessly integrate custom fonts into your document processing workflow. By the end, you’ll be able to:

• Load and configure custom fonts in your documents.
• Generate document previews with specified fonts.
• Optimize performance while handling font files.

Let’s dive into what you need to get started!

Prerequisites

Before loading custom fonts using GroupDocs.Annotation for .NET, ensure the following setup is ready:

• Required Libraries: Install .NET Framework or .NET Core on your machine.
• GroupDocs.Annotation Version 25.4.0: Ensure compatibility with your environment.
• Environment Setup: Familiarity with C# and using Visual Studio or a similar IDE.
• Knowledge Prerequisites: Basic understanding of file I/O operations in .NET.

Setting Up GroupDocs.Annotation for .NET

To begin, install the GroupDocs.Annotation library via NuGet Package Manager Console or .NET CLI:

NuGet Package Manager Console

Install-Package GroupDocs.Annotation -Version 25.4.0

.NET CLI

dotnet add package GroupDocs.Annotation --version 25.4.0

License Acquisition

GroupDocs offers a free trial, temporary license, or purchase options for commercial use:

• Free Trial: Access basic functionalities to explore the library.
• Temporary License: Obtain this via GroupDocs Temporary License to evaluate full features.
• Purchase: For ongoing use, consider purchasing a license from GroupDocs Purchase Page.

Basic Initialization

Here’s how you can set up and initialize GroupDocs.Annotation in your C# project:

using System;
using GroupDocs.Annotation;

class Program
{
    static void Main()
    {
        // Initialize Annotator with document path
        using (Annotator annotator = new Annotator("input_document.pdf"))
        {
            // Perform operations here
        }
    }
}

Implementation Guide

Now, let’s implement custom font loading step-by-step.

Loading Custom Fonts in GroupDocs.Annotation

Overview: This feature allows you to specify a directory containing custom fonts that GroupDocs.Annotation will use when processing documents. It ensures your document previews reflect the exact style you need.

Step 1: Set Up File Paths and Load Options

Define paths for your input file, font directory, and output location:

string documentPath = Path.Combine("YOUR_DOCUMENT_DIRECTORY\