sgolivernet - 2010-01-12

You can try something like:

RtfDocument doc = new RtfDocument("aux.rtf");
doc.AddText("{file1}");
doc.AddNewLine();
doc.AddText("{file2}");
doc.Close();

RtfMerger merger = new RtfMerger("aux.rtf", "temp.rtf", false);
merger.AddPlaceHolder("{file1}", "1.rtf");
merger.AddPlaceHolder("{file2}", "2.rtf");
merger.MergeRtfDoc();