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Converting RTF to PDF Using C#

RTF (Rich Text Format) is a universal document format that allows users to save and exchange formatted text across different word processing software. PDF (Portable Document Format), on the other hand, is a widely used document format that preserves the original layout of a document, ensuring consistent viewing across any device. Therefore, converting RTF files to PDF is important in many scenarios. This article will show you how to achieve this using Spire.Doc for .NET .

Introduction to Spire.Doc for .NET

Spire.Doc is a .NET component that makes it easy to handle Word documents, including creating, editing, converting, and printing documents. It supports multiple document formats, such as DOC, DOCX, RTF, HTML, TXT, PDF, and more. With Spire.Doc, developers can quickly perform complex document operations without needing to understand the underlying file formats in detail.

Installing Spire.Doc

To convert RTF to PDF using Spire.Doc, you can install it via the NuGet Package Manager. Here are the steps:

  1. Open Visual Studio and create a new project (e.g., Console Application).
  2. Right-click the project and select Manage NuGet Packages .
  3. In the Browse tab, search for Spire.Doc and click Install to add the library.

Code Example

Here’s a simple code example showing how to convert an RTF file to PDF using Spire.Doc:

using Spire.Doc;
using Spire.Doc.Documents;

class Program
{
    static void Main(string[] args)
    {
        // Create a Document object
        Document document = new Document();

        // Load the RTF file
        document.LoadFromFile("input.rtf");

        // Save as a PDF file
        document.SaveToFile("output.pdf", FileFormat.PDF);

        // Output success message
        Console.WriteLine("RTF file successfully converted to PDF!");
    }
}
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Code Explanation

  • Load RTF File: Use document.LoadFromFile() to load the RTF file from the specified path.
  • Save as PDF: Use document.SaveToFile() to save the loaded document as a PDF. The first parameter is the output file path, and the second parameter specifies the file format.
  • Output Success Message: A console message notifies the user that the conversion was successful.

Handling Exceptions

In real-world development, exception handling is crucial. Here’s an example of adding error handling:

using System;
using Spire.Doc;

class Program
{
    static void Main(string[] args)
    {
        try
        {
            // Create Document object
            Document document = new Document();

            // Load RTF file
            document.LoadFromFile("input.rtf");

            // Save as PDF file
            document.SaveToFile("output.pdf", FileFormat.PDF);

            Console.WriteLine("RTF file successfully converted to PDF!");
        }
        catch (Exception ex)
        {
            Console.WriteLine($"An error occurred: {ex.Message}");
        }
    }
}
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By catching exceptions, users can verify whether the file path is correct or if other issues exist.

Conclusion

Converting RTF files to PDF using Spire.Doc for .NET is very simple and can be done in just a few lines of code. By loading an RTF file and saving it as a PDF, developers can easily implement document processing features in their applications. Additionally, proper exception handling enhances program robustness and improves user experience.

This type of document conversion has wide applications in real-world scenarios, such as report generation, data export, and document sharing. Whether for business or academic purposes, mastering this skill is an essential capability for modern developers.

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