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C# Imaging - EAN-8 Generating Tutorial


Generate & Output GS1-compatible EAN-8 Image Using C#.NET Barcoding Library




Overview on EAN-8 Barcode Library in C#



EAN-8 is a numeric linear barcode symbology with a fixed length of 8 digits. RasterEdge .NET DocImage Barcode Add-on component enables Visual C# developers to create EAN-8 barcode image with best quality. All the EAN-8 barcodes generated with this .NET barcode control are compatible with the latest GS1 General Specification, with the last checksum digit character automatically added. There are only two project requirements: .NET Framework 2.0 or later version, and Microsoft Visual Studio 2005 or above.


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Detailed features are listed below:


Write EAN-8, EAN-8+2, EAN-8+5 (EAN-8 with supplement digits) using C# coding


Create EAN-8 in .NET Windows application, ASP.NET web form / web site & C# Class Library


Draw and print EAN-8 in png, jpeg, tiff and bmp raster image files


Generate and embed EAN-8 bar codes in PDF, TIFF, MS Office Word, Excel and PowerPoint documents


User can freely define the accurate location of EAN-8 barcode image with C#


Automatically add checksum and minimum quiet zone for scannable EAN-8 output


Besides this C# barcoding guide, we also provide VB.NET Codabar solution for VB.NET programmers. Here is the detailed Codabar Generation in Visual Basic.NET Tutorial.




C# Code for Customizing EAN-8 Barcode Generation



You can easily generator EAN-8 barcode and save it  to image files/object using this C#.NET barcode generator control. The following steps will show how to create a EAN-8 type barcode encoding numeric data text "123456789" into the image object with XImage.Barcode.Creator.


Add References


  RasterEdge.Imaging.Basic.dll


  RasterEdge.Imaging.Drawing.dll


  RasterEdge.Imaging.Font.dll


  RasterEdge.Imaging.Processing.dll


  RasterEdge.XImage.BarcodeCreator.dll


  System.Drawing.dll


Using Namespaces


  using System.Drawing;


  using RasterEdge.XImage.BarcodeCreator;


Note: When you get the error "Could not load file or assembly 'RasterEdge.Imaging.Basic' or any other assembly or one of its dependencies. An attempt to load a program with an incorrect format", please check your configure as follows:

       

       If you are using x64 libraries/dlls, Right click the project -> Properties -> Build -> Platform target: x64.

       

       If using x86, the platform target should be x86.


Please copy the sample code as follow to generator a EAN-8 barcode.




private static Linear CreateBarcode()
        {
            Linear barcode = new Linear();// create a barcode
            barcode.Type = BarcodeType.EAN8;// select barcode type
            barcode.Data = "7777777";// set barcode data
            barcode.X = 1.0F;// set x
            barcode.Y = 60.0F;// set y
            barcode.Resolution = 96;// set resolution
            barcode.Rotate = Rotate.Rotate0;// set rotation
            barcode.BarcodeWidth = 200;
            barcode.BarcodeHeight = 200;
            barcode.AutoResize = true;

            //convert barcode to a bitmap and save it to image file
            //Bitmap bmp = barcode.ToImage();
            //bmp.Save(@"C:\barcode.bmp");

            return barcode;
        }





Create EAN-8 Barcode on Image in C#.NET



Here is a C# example for developers to write and embed an EAN-8 barcode on a png image from the local disk C, with the detailed location specified by users with the X and Y coordinates. Besides the PNG image format, other supported common image formats are JPEG, BMP and GIF.




private static void AddBarcodeToImage(Linear barcode)
        {
            REImage image = new REImage(inputDirectory + "Sample.png");
            barcode.DrawBarcode(image, 150F, 150F);
            image.Save(ImageType.PNG, outputDirectory + "Sample_Barcode.png");
        }





Generate EAN-8 on Document Page in C#.NET



Use following C# code to generate EAN-8 on defined page area of a PDF, multi-page TIFF, Microsoft Office Word (.docx), Excel(.xlsx) or PowerPoint(.pptx) document.



EAN-8 Image Creation on C# PDF Document Area



Add References(Extra)


  RasterEdge.Imaging.Basic.Codec.dll


  RasterEdge.XImage.Raster.dll


  RasterEdge.XImage.Raster.Core.dll


  RasterEdge.XDoc.PDF.dll


Using Namespace(Extra)


  RasterEdge.XDoc.PDF;


  RasterEdge.Imaging.Basic;


  RasterEdge.Imaging.Raster.Core;



private static void AddBarcodeToPDF(Linear barcode)
        {
            PDFDocument docx = new PDFDocument(inputDirectory + "Sample.pdf");
            BasePage page = docx.GetPage(0);
            REImage image = new REImage(barcode.ToImage());
            page.AddImage(image, new PointF(100F, 100F));
            docx.Save(outputDirectory + "Sample_Barcode.pdf");
        }




EAN-8 Image Creation on C# TIFF File Page



Add References(Extra)


  RasterEdge.Imaging.Basic.Codec.dll


  RasterEdge.XImage.Raster.dll


  RasterEdge.XImage.Raster.Core.dll


  RasterEdge.XDoc.TIFF.dll


Using Namespace(Extra)


  RasterEdge.XDoc.TIFF;


  RasterEdge.Imaging.Basic;


  RasterEdge.Imaging.Raster.Core;




private static void AddBarcodeToTIFF(Linear barcode)
        {
            TIFFDocument docx = new TIFFDocument(inputDirectory + "Sample.tif");
            BasePage page = docx.GetPage(0);
            REImage image = new REImage(barcode.ToImage());
            page.AddImage(image, new PointF(100F, 100F));
            docx.Save(outputDirectory + "Sample_Barcode.tif");
        }




EAN-8 Image Creation on C# Word Document



Add References(Extra)


  RasterEdge.XDoc.Word.dll


  RasterEdge.XImage.Raster.dll


  RasterEdge.XImage.Raster.Core.dll


  RasterEdge.XDoc.Office.Inner.Common.dll


  RasterEdge.XDoc.Office.Inner..Office03.dll


Using Namespace(Extra)


  RasterEdge.XDoc.Word;


  RasterEdge.Imaging.Basic;


  RasterEdge.Imaging.Raster.Core;




private static void AddBarcodeToWord(Linear barcode)
        {
            DOCXDocument docx = new DOCXDocument(inputDirectory + "Sample.docx");
            BasePage page = docx.GetPage(0);
            REImage image = new REImage(barcode.ToImage());
            page.AddImage(image, new PointF(100F, 100F));
            docx.Save(outputDirectory + "Sample_Barcode.docx");
        }




EAN-8 Image Creation on C# Excel Document



Add References(Extra)


  RasterEdge.XDoc.Excel.dll


  RasterEdge.XImage.Raster.dll


  RasterEdge.XImage.Raster.Core.dll


  RasterEdge.XDoc.Office.Inner.Common.dll


  RasterEdge.XDoc.Office.Inner..Office03.dll


Using Namespace(Extra)


  RasterEdge.XDoc.Excel;


  RasterEdge.Imaging.Basic;


  RasterEdge.Imaging.Raster.Core;




private static void AddBarcodeToExcel(Linear barcode)
        {
            XLSXDocument docx = new XLSXDocument(inputDirectory + "Sample.xlsx");
            BasePage page = docx.GetPage(0);
            REImage image = new REImage(barcode.ToImage());
            page.AddImage(image, new PointF(100F, 100F));
            docx.Save(outputDirectory + "Sample_Barcode.xlsx");
        }




EAN-8 Image Creation on C# PowerPoint Document



Add References(Extra)


  RasterEdge.XDoc.PowerPoint.dll


  RasterEdge.XImage.Raster.dll


  RasterEdge.XImage.Raster.Core.dll


  RasterEdge.XDoc.Office.Inner.Common.dll


  RasterEdge.XDoc.Office.Inner..Office03.dll


Using Namespace(Extra)


  RasterEdge.XDoc.PowerPoint;


  RasterEdge.Imaging.Basic;


  RasterEdge.Imaging.Raster.Core;




private static void AddBarcodeToPowerPoint(Linear barcode)
        {
            PPTXDocument docx = new PPTXDocument(inputDirectory + "Sample.pptx");
            BasePage page = docx.GetPage(0);
            REImage image = new REImage(barcode.ToImage());
            page.AddImage(image, new PointF(100F, 100F));
            docx.Save(outputDirectory + "Sample_Barcode.pptx");
        }





Generate EAN-8 on Image & Document in C#



RasterEdge supports EAN-8 barcode generation and customization on image and document in Visual C#.NET application.




// create REImage on which you want to draw the barcode
REImage reImage = new REImage("c:/Sample.png");

Linear barcode = new Linear();// create a barcode
barcode.Type = BarcodeType.EAN8;// select barcode type
barcode.Data = "7777777";// set barcode data 

// EAN-8 barcode size related
barcode.X = 1.0F;// set x
barcode.Y = 60.0F;// set y
barcode.BarcodeHeight = 60;
barcode.BarcodeWidth = 0;
barcode.BottomMargin = 0;
barcode.LeftMargin = 0;
barcode.RightMargin = 0;
barcode.BarAlignment = AlignmentHori.Left;
barcode.Resolution = 96;// set resolution
barcode.Rotate = Rotate.Rotate0;// set rotation
barcode.AddCheckSum = false;
barcode.UOM = RasterEdge.Imaging.Barcode.Creator.UnitOfMeasure.PIXEL;

// EAN-8 colors
barcode.BackColor = System.Drawing.Color.White;
barcode.ForeColor = System.Drawing.Color.Black;

// EAN-8 font style
barcode.TextFont = new Font("Arial", 9f, FontStyle.Regular);
barcode.TextColor = System.Drawing.Color.Black;
barcode.TextMargin = 6;
barcode.ShowText = true;

// EAN-8 special
// barcode.SupData = "";
// barcode.SupHeight = 0.8f;
// barcode.SupSpace = 15;

barcode.DrawBarcode(reImage, 0, 0);// draw barcode on REImage with location x and y

reImage.Save(ImageType.PNG, @"c:/barcode.png");