PdfPTable table = new PdfPTable(3); // Create table with 3 columns table.AddCell("Cell 1"); // Add cell to row 1, column 1 table.AddCell("Cell 2"); // Add cell to row 1, column 2 table.AddCell("Cell 3"); // Add cell to row 1, column 3In this example, we create a PDF table with 3 columns using the `PdfPTable` class. We then add 3 cells to the first row using the `table.AddCell` method. The `iTextSharp.text.pdf` package library is used in this code snippet to generate and manipulate PDF documents in C#.