RTF (Rich Text Format) is a cross-platform document developed by Microsoft in the 1980s. RTF can be opened by most word processors, and it is also convenient for editing. But when it comes to sharing and printing documents in daily work, it’s more recommended to convert the RTF to PDF for further processing. In this article, you will learn how to convert RTF to PDF programmatically using Spire.Doc for .NET.

Install Spire.Doc for .NET

To begin with, you need to add the DLL files included in the Spire.Doc for .NET package as references in your .NET project. The DLL files can be either downloaded from this link or installed via NuGet.

PM> Install-Package Spire.Doc

Convert RTF to PDF in C# and VB.NET

Spire.Doc for .NET enables you to directly load a file with .rtf extension and then convert it to PDF with only three lines of code. The detailed steps are as follows.

• Create a Document instance.
• Load a sample RTF document using Document.LoadFromFile() method.
• Save the document as a PDF file using Document.SaveToFile() method.

using Spire.Doc;

namespace RTFtoPDF
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create a Document instance
            Document doc = new Document();

            //Load a sample RTF document
            doc.LoadFromFile("sample.rtf", FileFormat.Rtf);

            //Save it to PDF
            doc.SaveToFile("RTFtoPDF.pdf", FileFormat.PDF);
        }
    }
}

Imports Spire.Doc

Namespace RTFtoPDF

    Class Program

        Private Shared Sub Main(ByVal args() As String)

            'Create a Document instance
            Dim doc As Document = New Document

            'Load a sample RTF document
            doc.LoadFromFile("sample.rtf", FileFormat.Rtf)

            'Save it to PDF
            doc.SaveToFile("test.pdf", FileFormat.PDF)
        End Sub
    End Class
End Namespace

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.