RtfPipe

You can install RtfPipe using the NuGet Package Manager console.

Install-Package RtfPipe

Use the Rtf.ToHtml method to convert an RTF string into an HTML string.

Important for .NET Core users:

1. You must include the System.Text.Encoding.CodePages NuGet package.
2. You must call Encoding.RegisterProvider(CodePagesEncodingProvider.Instance); before calling any RtfPipe functions to ensure proper encoding support.

#if NETCORE
  // Add a reference to the NuGet package System.Text.Encoding.CodePages for .Net core only
  Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
#endif
var html = Rtf.ToHtml(rtf);

RtfPipe is compatible with the following .NET targets:

• .NET 3.5+
• .NET Standard 2.0+

RtfPipe attempts to support core features from the RTF Specification 1.9.1, including:

• Character formatting (bold, italics, color, etc.)
• Tables (including nested tables)
• Lists
• Hyperlinks
• Pictures
• Heading levels
• HTML encapsulation (e.g., as performed by Outlook)

Note: For highly complex documents, the visual output may differ from professional RTF readers like MS Word.