PdfSharp extensions for adding a 2D DataMatrix barcode to a PdfPage using the IEC16022Sharp library to generate the 2D barcode image.

PdfSharpExtensions.cs

namespace PDFMerger.Utilities
{
    /// <summary>
    /// Provides extension methods for PdfSharp objects.
    /// </summary>
    public static class PdfSharpExtensions
    {
        /// <summary>
        /// Adds a 2D DataMatrix barcode to the PdfPage.
        /// </summary>
        /// <summary>
        /// This method uses the IEC16022Sharp library, an open source C# implementation of the
        /// ISO/IEC 16022:2006—Data Matrix bar code symbology specification: http://iec16022sharp.sourceforge.net/
        /// </summary>
        /// <param name="pdfPage">PdfPage to add the barcode to.</param>
        /// <param name="barcodeData">Barcode data string.</param>
        /// <param name="barcodeWidth">Barcode width.</param>
        /// <param name="barcodeHeight">Barcode height.</param>
        /// <param name="xCoordinate">X coordinate to place the barcode at.</param>
        /// <param name="yCoordinate">Y coordinate to place the bardcode at.</param>
        public static void Add2DDataMatrixBarcode( this PdfSharp.Pdf.PdfPage pdfPage, string barcodeData, int barcodeWidth, int barcodeHeight, int xCoordinate, int yCoordinate )
        {
            // Create the 2D DataMatrix barcode
            var dataMatrix2DBarcode = new IEC16022Sharp.DataMatrix( barcodeData, barcodeWidth, barcodeHeight );

            // Convert the 2D barcode Bitmap to an XImage
            var image = PdfSharp.Drawing.XImage.FromGdiPlusImage( dataMatrix2DBarcode.Image );

            // Convert the Pdf page to a canvas that can be written to
            var pdfPageGraphics = PdfSharp.Drawing.XGraphics.FromPdfPage( pdfPage );

            // Draw the barcode onto the canvas
            pdfPageGraphics.DrawImage( image, xCoordinate, yCoordinate, image.PointWidth, image.PointHeight );

        }
    }
}