Barcode and How to Draw it in PDF

Barcode Introduction

Barcode is identifier to display information, which is formed with many discolorations and blanks with different width and ordered by code rule. Barcode can be used to point out manufacturer, country date and other information of products. Also, it can show book catalogue number.

Generally speaking, Product Barcode is made up with prefix part, manufacturer code, product code and check code. Prefix part shows code of country or area. Product code shows which kind of products it is. And the last number of Product Barcode is used to check if the code (number 1 to 12) is right.

Nowadays, barcode technology is widely used in commodity circulation, book management and so on.

How to Draw Barcode in PDF with C#

People can use some professional PDF tool to edit one PDF document, including inserting images and drawing various shapes. In this post, I will introduce how to draw PDF barcode by using C# via one component: Spire.PDF.

Code:

using System.Drawing;

using Spire.Pdf;

using Spire.Pdf.Graphics;

using Spire.Pdf.Barcode;

namespace Barcode

{

    class Program

    {

        static void Main(string[] args)

        {

            //Create a pdf document.

            PdfDocument doc = new PdfDocument();

            //margin

            PdfUnitConvertor unitCvtr = new PdfUnitConvertor();

            PdfMargins margin = new PdfMargins();

            margin.Top = unitCvtr.ConvertUnits(2.54f, PdfGraphicsUnit.Centimeter, PdfGraphicsUnit.Point);

            margin.Bottom = margin.Top;

            margin.Left = unitCvtr.ConvertUnits(3.17f, PdfGraphicsUnit.Centimeter, PdfGraphicsUnit.Point);

            margin.Right = margin.Left;

            PdfSection section = doc.Sections.Add();

            section.PageSettings.Margins = margin;

            sectio

un.PageSettings.Size = PdfPageSize.A4;

            // Create one page

            PdfPageBase page = section.Pages.Add();

            float y = 10;

            PdfBrush brush1 = PdfBrushes.Black;

            PdfTrueTypeFont font1 = new PdfTrueTypeFont(new Font("Arial", 12f, FontStyle.Bold), true);

            RectangleF rctg = new RectangleF(new PointF(0, 0), page.Canvas.ClientSize);

            PdfLinearGradientBrush brush2

                = new PdfLinearGradientBrush(rctg, Color.Navy, Color.OrangeRed, PdfLinearGradientMode.Vertical);

            //draw Codabar

            PdfTextWidget text = new PdfTextWidget();

            text.Font = font1;

            text.Text = "Codabar:";

            PdfLayoutResult result = text.Draw(page, 0, y);

            page = result.Page;

            y = result.Bounds.Bottom + 2;

            PdfCodabarBarcode barcode1 = new PdfCodabarBarcode("00:12-3456/7890");

            barcode1.BarcodeToTextGapHeight = 1f;

            barcode1.EnableCheckDigit = true;

            barcode1.ShowCheckDigit = true;

            barcode1.TextDisplayLocation = TextLocation.Bottom;

            barcode1.TextColor = Color.Blue;

            barcode1.Draw(page, new PointF(0, y));

            y = barcode1.Bounds.Bottom + 5;

            //draw Code11Barcode

            text.Text = "Code11:";

            result = text.Draw(page, 0, y);

            page = result.Page;

            y = result.Bounds.Bottom + 2;

            PdfCode11Barcode barcode2 = new PdfCode11Barcode("123-4567890");

            barcode2.BarcodeToTextGapHeight = 1f;

            barcode2.TextDisplayLocation = TextLocation.Bottom;

            barcode2.TextColor = Color.Blue;

            barcode2.Draw(page, new PointF(0, y));

            y = barcode2.Bounds.Bottom + 5;

            //draw Code128-A

            text.Text = "Code128-A:";

            result = text.Draw(page, 0, y);

            page = result.Page;

            y = result.Bounds.Bottom + 2;

            PdfCode128ABarcode barcode3 = new PdfCode128ABarcode("HELLO 00-123");

            barcode3.BarcodeToTextGapHeight = 1f;

            barcode3.TextDisplayLocation = TextLocation.Bottom;

            barcode3.TextColor = Color.Blue;

            barcode3.Draw(page, new PointF(0, y));

            y = barcode3.Bounds.Bottom + 5;

            //draw Code128-B

            text.Text = "Code128-B:";

            result = text.Draw(page, 0, y);

            page = result.Page;

            y = result.Bounds.Bottom + 2;

            PdfCode128BBarcode barcode4 = new PdfCode128BBarcode("Hello 00-123");

            barcode4.BarcodeToTextGapHeight = 1f;

            barcode4.TextDisplayLocation = TextLocation.Bottom;

            barcode4.TextColor = Color.Blue;

            barcode4.Draw(page, new PointF(0, y));

            y = barcode4.Bounds.Bottom + 5;

            //draw Code32

            text.Text = "Code32:";

            result = text.Draw(page, 0, y);

            page = result.Page;

            y = result.Bounds.Bottom + 2;

            PdfCode32Barcode barcode5 = new PdfCode32Barcode("16273849");

            barcode5.BarcodeToTextGapHeight = 1f;

            barcode5.TextDisplayLocation = TextLocation.Bottom;

            barcode5.TextColor = Color.Blue;

            barcode5.Draw(page, new PointF(0, y));

            y = barcode5.Bounds.Bottom + 5;

            page = section.Pages.Add();

            y = 10;

            //draw Code39

            text.Text = "Code39:";

            result = text.Draw(page, 0, y);

            page = result.Page;

            y = result.Bounds.Bottom + 2;

            PdfCode39Barcode barcode6 = new PdfCode39Barcode("16-273849");

            barcode6.BarcodeToTextGapHeight = 1f;

            barcode6.TextDisplayLocation = TextLocation.Bottom;

            barcode6.TextColor = Color.Blue;

            barcode6.Draw(page, new PointF(0, y));

            y = barcode6.Bounds.Bottom + 5;

            //draw Code39-E

            text.Text = "Code39-E:";

            result = text.Draw(page, 0, y);

            page = result.Page;

            y = result.Bounds.Bottom + 2;

            PdfCode39ExtendedBarcode barcode7 = new PdfCode39ExtendedBarcode("16-273849");

            barcode7.BarcodeToTextGapHeight = 1f;

            barcode7.TextDisplayLocation = TextLocation.Bottom;

            barcode7.TextColor = Color.Blue;

            barcode7.Draw(page, new PointF(0, y));

            y = barcode7.Bounds.Bottom + 5;

            //draw Code93

            text.Text = "Code93:";

            result = text.Draw(page, 0, y);

            page = result.Page;

            y = result.Bounds.Bottom + 2;

            PdfCode93Barcode barcode8 = new PdfCode93Barcode("16-273849");

            barcode8.BarcodeToTextGapHeight = 1f;

            barcode8.TextDisplayLocation = TextLocation.Bottom;

            barcode8.TextColor = Color.Blue;

            barcode8.QuietZone.Bottom = 5;

            barcode8.Draw(page, new PointF(0, y));

            y = barcode8.Bounds.Bottom + 5;

            //draw Code93-E

            text.Text = "Code93-E:";

            result = text.Draw(page, 0, y);

            page = result.Page;

            y = result.Bounds.Bottom + 2;

            PdfCode93ExtendedBarcode barcode9 = new PdfCode93ExtendedBarcode("16-273849");

            barcode9.BarcodeToTextGapHeight = 1f;

            barcode9.TextDisplayLocation = TextLocation.Bottom;

            barcode9.TextColor = Color.Blue;

            barcode9.Draw(page, new PointF(0, y));

            y = barcode9.Bounds.Bottom + 5;

            //Save pdf file.

            doc.SaveToFile("Barcode.pdf");

            doc.Close();

            //Launching the Pdf file.

            System.Diagnostics.Process.Start("Barcode.pdf");

        }

    }

}