C# QR Code Generator Library
QR Code Image Generation Tutorial

Create QR Code Barcode on C# Images, TIFF, PDF, Word, Excel and PowerPoint

ON THIS PAGE:

Overview
Characters Encoding
Special Characters Encoding
C# Sample Codes

In this C# tutorial, you will learn how to create a QR Code 2d barcode image using C# in ASP.NET MVC Web, Windows applications.

Generate high quality QR Code barcode images
Advanced options for barcode size, barcode color, and QR Code data encoding
Generate GS1 compatible QR Code, and QR Code for international text
Draw, print QR Code in PNG, JPG, and Bitmap raster images
Create QR Code in PDF, TIFF, Office Word, Excel, PowerPoint files

How to create a QR Code in JPG, PDF, Tiff, Word, BMP file using C#

Download XImage.Barcode Generator C# library
Install C# library to draw QR Code barcodes
Step by Step Tutorial

By using this .NET QR Code barcode generator add-on component, developers can create & draw scannable QR Codes on different image files (png, jpeg, gif and bmp) and insert them into common documents like TIFF, PDF, MS Word, Excel and PowerPoint using Visual C#.NET programming code. Following are some barcoding features offered by this .NET QR Code encoder DLL.

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Written in C# managed code, compatible with .NET Framework 2.0 and above
Generating, writing QR Code bar codes on PNG, JPG, GIF, and BMP image files with specified location
C# tutorial and sample codes to draw, insert QR Codes in PDF, TIFF, MS Word, Excel and PowerPoint
Control QR Code barcode size by setting size related properties
Use C# code to adjust bar code image format, location, resolution, orientation, version, color and more
Compatible with ISO+IEC+18004 QR Code bar code symbology specification

QR Code barcode data encoding in C#

Encode character set and QR Code data mode

QR Code support encoding the following characters.

Numeric data (digits 0 - 9)
Alphanumeric data (0 - 9; A -Z; nine other characters: space, $ % * + - . / : )
Byte data
Kanji characters

QR Code data mode

To encode the above character sets, QR Code defines five encoding data modes.

Auto
Numeric
AlphaNumeric
Byte
Kanji

QR Code maximum data length

Maximum characters per QR Code barcode with Version 40-L

numeric data: 7,089 characters
alphanumeric data: 4,296 characters
byte data: 2,953 characters
Kanji data: 1,817 characters

QR Code error correction mode

Four levels of Reed-Solomon error correction (referred to as L, M, Q and H in increasing order of capacity) allowing recovery of the QR Code barcode data.

Using XImage.Barcode Generator C# library, class QRCode has provided the property ECL. You can set one of the following values from RasterEdge.XImage.BarcodeCreator.QRCodeECL

L: 7% (QRCodeECL.H)
M: 15% (QRCodeECL.M)
Q: 25% (QRCodeECL.Q)
H: 30% (QRCodeECL.H)

QR Code Special Characters Encoding using C#

How to generate GS1 QR Code using C#

GS1 QR Code barcode is a standalone, two-dimensional matrix symbology that is made up of square modules arranged in an overall square pattern, including a unique finder pattern located at three corners of the barcode symbol.

To create valid GS1 QR Code using C# QR Code library, you need apply the following properties with valid value or formats.

FNC1: The value should be RasterEdge.XImage.BarcodeCreator.FNC1.FNC1_1ST_POS.
Data: Valid GS1 data message includes pairs of AI code and AI data. Using QR Code C# library, all AI codes should be surrounded by parentheses. For example: (11)010101(15)020202

How to encode Kanji characters in QR Code using C#

Apply the following settings to encode Kanji characters in QR Code C# barcode generator library:

ProcessTilde: Set to enable '~' in data message.
DataMode:It should be RasterEdge.XImage.BarcodeCreator.QRCodeDataMode.Kanji

How to encode international characters in QR Code using C#

To encode international characters in QR Code, you need convert internation text to byte array using UTF-8 encode, and generate QR Code using byte mode.

Following properties should be applied to generate international characters in QR Code using C#:

ProcessTilde: Set to enable '~' in data message.
DataMode:It should be RasterEdge.XImage.BarcodeCreator.QRCodeDataMode.Byte
Data: The international characters should be converted to byte array using UTF8 encoding.

            RasterEdge.XImage.BarcodeCreator.QRCode qrcode = new RasterEdge.XImage.BarcodeCreator.QRCode();

            string message = "à¸ªà¸§à¸±à¸ªà¸”à¸µ";
            byte[] bytes = Encoding.UTF8.GetBytes(message);
            StringBuilder messageInBytes = new StringBuilder();
            foreach (byte b in bytes)
                messageInBytes.Append("~" + b.ToString().PadLeft(3, '0'));

            qrcode.Data = messageInBytes.ToString();
            qrcode.ProcessTilde = true;
            qrcode.DataMode = RasterEdge.XImage.BarcodeCreator.QRCodeDataMode.Byte;

            //  Set barcode size to 2 inch x 2 inch
            qrcode.AutoResize = true;
            qrcode.UOM = RasterEdge.XImage.BarcodeCreator.UnitOfMeasure.INCH;
            qrcode.BarcodeWidth = 2F;
            qrcode.BarcodeHeight = 2F;
            //  Set image resolution to 300 dpi.
            qrcode.Resolution = 300;

            //  Set all margins to 0
            qrcode.LeftMargin = 0;
            qrcode.RightMargin = 0;
            qrcode.TopMargin = 0;
            qrcode.BottomMargin = 0;

            Bitmap qrcodeBitmap = qrcode.ToImage();
            qrcodeBitmap.Save(@"W:\Projects\Test-Output\RasterEdge.com\barcode-qrcode-international-byte.png");

How to create QR Code barcode in PDF file with web link added using C#.NET

The following content and C# sample source code to show how to create QR Code barcode in an existing PDF file, and create, insert a web link on the QR Code in the PDF document using C#.NET

Create a new QRCode object
Set QR Code encoding data "https://www.rasteredge.com".
Set QR Code barcode size options
Create a new PDFDocument from an existing PDF file
Get a new PDFPage object from the first page of the PDF document
Generate and print QR Code on the PDFPage object
Create a new PDFLinkAction object to add a web link to PDF page
Set the web link position and area which is the same position and area as QR Code
Add, insert the web link object to the PDF page
Save the PDF file

Note: web link covered area width and height calculation is based on PDF document default resolution (96 dpi). Two inch is 192 dpi.

            RasterEdge.XImage.BarcodeCreator.QRCode qrcode = new RasterEdge.XImage.BarcodeCreator.QRCode();

            qrcode.Data = "https://www.rasteredge.com";
            qrcode.DataMode = RasterEdge.XImage.BarcodeCreator.QRCodeDataMode.Auto;

            //  Set barcode size to 2 inch x 2 inch
            qrcode.AutoResize = true;
            qrcode.UOM = RasterEdge.XImage.BarcodeCreator.UnitOfMeasure.INCH;
            qrcode.BarcodeWidth = 2F;
            qrcode.BarcodeHeight = 2F;
            //  Set image resolution to 300 dpi.
            qrcode.Resolution = 300;

            //  Set all margins to 0
            qrcode.LeftMargin = 0;
            qrcode.RightMargin = 0;
            qrcode.TopMargin = 0;
            qrcode.BottomMargin = 0;

            String inputFilePath = @"W:\Projects\Test-Files\XDoc.PDF Overview.pdf";
            String outputFilePath = @"W:\Projects\Test-Output\RasterEdge.com\barcode-qrcode-pdf.pdf";

            PDFDocument doc = new PDFDocument(inputFilePath);
            //  Draw the barcode at position (300, 360) in pixels on the 1st page.
            PDFPage page = (PDFPage)doc.GetPage(0);
            qrcode.DrawBarcode(page, 300, 360);


            //  Create and add a link to the same area of the QRCode
            PDFLinkAction action = PDFLinkActionURI.Create("https://www.rasteredge.com");
            //  Position (300, 360) in pixels; Width and height: 2 inch (192 pixels).
            RectangleF area = new RectangleF(300, 360, 192, 192);
            PDFLinkSetting link = new PDFLinkSetting(area, action);
            //  Add the link to the 1st page.
            PDFLinkHandler.AddLink(doc, 0, link);

            doc.Save(outputFilePath);

How to generate QR Code barcode in TIFF file using C#.NET

The following C# source code explains how to create QR Code barcode in an existing Tiff file using C#.NET

            RasterEdge.XImage.BarcodeCreator.QRCode qrcode = new RasterEdge.XImage.BarcodeCreator.QRCode();

            qrcode.Data = "https://www.rasteredge.com";

            //  Set barcode size to 2 inch x 2 inch
            qrcode.AutoResize = true;
            qrcode.UOM = RasterEdge.XImage.BarcodeCreator.UnitOfMeasure.INCH;
            qrcode.BarcodeWidth = 2F;
            qrcode.BarcodeHeight = 2F;
            //  Set image resolution to 300 dpi.
            qrcode.Resolution = 300;

            //  Set all margins to 0
            qrcode.LeftMargin = 0;
            qrcode.RightMargin = 0;
            qrcode.TopMargin = 0;
            qrcode.BottomMargin = 0;

            String inputFilePath = @"W:\Projects\Test-Files\XDoc.PDF Overview.tiff";
            String outputFilePath = @"W:\Projects\Test-Output\RasterEdge.com\barcode-qrcode-tiff.tiff";

            TIFFDocument tiffDoc = new TIFFDocument(inputFilePath);

            //  Draw the barcode at position (100, 200) in pixels on the 1st page.
            BasePage page = tiffDoc.GetPage(0);
            qrcode.DrawBarcode(page, 100, 200);

            tiffDoc.Save(outputFilePath);

How to generate QR Code in Office Word, Excel, PowerPoint files using C#.NET

The following C# source code explains how to generate, insert QR Code barcode in a Word (.docx) file using C#.NET

            RasterEdge.XImage.BarcodeCreator.QRCode qrcode = new RasterEdge.XImage.BarcodeCreator.QRCode();

            qrcode.Data = "https://www.rasteredge.com";

            //  Set barcode size to 1 inch x 1 inch
            qrcode.AutoResize = true;
            qrcode.UOM = RasterEdge.XImage.BarcodeCreator.UnitOfMeasure.INCH;
            qrcode.BarcodeWidth = 1F;
            qrcode.BarcodeHeight = 1F;
            //  Set image resolution to 300 dpi.
            qrcode.Resolution = 300;

            //  Set all margins to 0
            qrcode.LeftMargin = 0;
            qrcode.RightMargin = 0;
            qrcode.TopMargin = 0;
            qrcode.BottomMargin = 0;

            String inputFilePath = @"W:\Projects\Test-Files\word-empty.docx";
            String outputFilePath = @"W:\Projects\Test-Output\RasterEdge.com\barcode-qrcode-word.docx";

            DOCXDocument doc = new DOCXDocument(inputFilePath);

            //  Draw the barcode at position (100, 200) in pixels on the 1st page.
            BasePage page = doc.GetPage(0);

            REImage image = new REImage(qrcode.ToImage());
            page.AddImage(image, new PointF(100F, 200F));

            doc.Save(outputFilePath);

How to draw, print QR Code in JPG, PNG, Bitmap images using C#.NET

The C# sample code below shows how to generate, draw QR Code barcode in an image file (JPG, PNG, or BMP) using C#.NET

            RasterEdge.XImage.BarcodeCreator.QRCode qrcode = new RasterEdge.XImage.BarcodeCreator.QRCode();

            qrcode.Data = "https://www.rasteredge.com";

            //  Set barcode size to 2 inch x 2 inch
            qrcode.AutoResize = true;
            qrcode.UOM = RasterEdge.XImage.BarcodeCreator.UnitOfMeasure.INCH;
            qrcode.BarcodeWidth = 2F;
            qrcode.BarcodeHeight = 2F;
            //  Set image resolution to 300 dpi.
            qrcode.Resolution = 300;

            //  Set all margins to 0
            qrcode.LeftMargin = 0;
            qrcode.RightMargin = 0;
            qrcode.TopMargin = 0;
            qrcode.BottomMargin = 0;

            Bitmap qrcodeBitmap = qrcode.ToImage();
            qrcodeBitmap.Save(@"W:\Projects\Test-Output\RasterEdge.com\barcode-qrcode.png");

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C# QR Code Generator Library QR Code Image Generation Tutorial