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Description

To add barcode or QR code to PDF document, use free Gehtsoft.PDFFlowLib.Barcodes library for C#. It uses Gehtsoft.Barcodes library, and allows you to generate barcodes directly into your PDF document. Currently the library supports generation of the following types of barcodes and QR codes: EAN-8 EAN-13 GS1-128A GS1-128B GS1-128C UPC-A QR codes

Programming language: C#
License: GNU Lesser General Public License v3.0 only
Tags: Barcode     Pdf     C     QR    

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README

Gehtsoft.Barcodes

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Gehtsoft.Barcodes is a cross-platform C# library for generation of different types of barcodes and QR codes. The goal of the Gehtsoft.Barcodes library is to provide .NET application developers with a solution that allows them to create barcodes (including QR codes) quickly.

You can easily add barcodes to your application using the convenient API methods.

The following platforms are supported:

  • .NET Framework 4.5.1 and later
  • .NET Standard 2.0

Main features

Currently the library supports generation of the following types of barcodes and QR codes:

  • EAN-8
  • EAN-13
  • GS1-128A
  • GS1-128B
  • GS1-128C
  • UPC-A
  • QR codes

Additionally, using the link in the More Information section, you can get our other proprietary library for generating PDF documents with convenient integration. Using the GS PDFFlow library, you can easily add barcodes to simple and complex documents.

Getting started

The easiest way to get started is to install the available NuGet package.

Quick start

You need to connect links to the project:

using Gehtsoft.Barcodes.UserAPI;
using Gehtsoft.Barcodes.Enums;

In these examples, we use standard modules for saving images.

using System.IO;
using System.Drawing;

You can use any graphics library that can accept PNG data.

public class QuickStart
{
    private static void Main(string[] args)
    {
        byte[] dataBarcode8 = BarcodesMaker.GetBarcode("01234567",
                                                       BarcodeType.EAN_8,
                                                       Color.Black,
                                                       Color.White,
                                                       true,
                                                       MeasureBarcodeUnit.FromPixel(0));
        using (Image image = Image.FromStream(new MemoryStream(dataBarcode8)))
        {
            image.Save("barcodeEAN8.png", System.Drawing.Imaging.ImageFormat.Png);
        }

        byte[] dataBarcode13 = BarcodesMaker.GetBarcode("0123456789123",
                                                       BarcodeType.EAN_13,
                                                       Color.Black,
                                                       Color.White,
                                                       true,
                                                       MeasureBarcodeUnit.FromPixel(0));
        using (Image image = Image.FromStream(new MemoryStream(dataBarcode13)))
        {
            image.Save("barcodeEAN13.png", System.Drawing.Imaging.ImageFormat.Png);
        }

        byte[] dataBarcodeGS128 = BarcodesMaker.GetBarcode("012345678912ABCD",
                                                                  BarcodeType.GS1_128A,
                                                                  Color.Black,
                                                                  Color.White,
                                                                  true,
                                                                  MeasureBarcodeUnit.FromPixel(0));
        using (Image image = Image.FromStream(new MemoryStream(dataBarcodeGS128)))
        {
            image.Save("barcodeGS128.png", System.Drawing.Imaging.ImageFormat.Png);
        }

        byte[] dataQR = BarcodesMaker.GetQRCode("QRCode example", 
                                                QRCodeEncodingMethod.Binary, 
                                                QRCodeErrorCorrection.M,
                                                8);
        using (Image image = Image.FromStream(new MemoryStream(dataQR)))
        {
            image.Save("QRCode.png", System.Drawing.Imaging.ImageFormat.Png);
        }

        byte[] dataBarcode8 = BarcodesMaker.GetBarcode("01234567",
                                                        BarcodeType.EAN_8,
                                                        Color.Blue,
                                                        Color.Yellow,
                                                        true,
                                                        MeasureBarcodeUnit.FromPixel(0),
                                                        2,
                                                        false);
        using (Image image = Image.FromStream(new MemoryStream(dataBarcode8)))
        {
            image.Save("barcodeEAN8_2.png", System.Drawing.Imaging.ImageFormat.Png);
        }

        byte[] dataBarcode13 = BarcodesMaker.GetBarcode("0123456789123",
                                                        BarcodeType.EAN_13,
                                                        Color.Green,
                                                        Color.White,
                                                        true,
                                                        MeasureBarcodeUnit.FromPixel(0),
                                                        2,
                                                        false);
        using (Image image = Image.FromStream(new MemoryStream(dataBarcode13)))
        {
            image.Save("barcodeEAN13_2.png", System.Drawing.Imaging.ImageFormat.Png);
        }

        byte[] dataBarcodeGS128 = BarcodesMaker.GetBarcode("012345678912ABCD",
                                                        BarcodeType.GS1_128A,
                                                        Color.Red,
                                                        Color.Gray,
                                                        true,
                                                        MeasureBarcodeUnit.FromPixel(0),
                                                        2, 
                                                        false);
        using (Image image = Image.FromStream(new MemoryStream(dataBarcodeGS128)))
        {
            image.Save("barcodeGS128_2.png", System.Drawing.Imaging.ImageFormat.Png);
        }

        byte[] dataQR = BarcodesMaker.GetQRCode("QRCode example",
                                                QRCodeEncodingMethod.Binary,
                                                QRCodeErrorCorrection.M,
                                                8, 
                                                Color.Black, Color.Green, 
                                                false);
        using (Image image = Image.FromStream(new MemoryStream(dataQR)))
        {
            image.Save("QRCode_2.png", System.Drawing.Imaging.ImageFormat.Png);
        }

        byte[] dataBarcode13 = BarcodesMaker.GetBarcode("0123456789123",
                                                        BarcodeType.EAN_13,
                                                        Color.Black,
                                                        Color.White,
                                                        true,
                                                        0,
                                                        2,
                                                        true,
                                                        BarcodeRotation.Clockwise_90);
        using (Image image = Image.FromStream(new MemoryStream(dataBarcode13)))
        {
            image.Save("rotation_90_clockwise.png", System.Drawing.Imaging.ImageFormat.Png);
        }

        byte[] dataBarcode13 = BarcodesMaker.GetBarcode("123456789012",
                                                        BarcodeType.UPC_A,
                                                        Color.Black,
                                                        Color.White,
                                                        true,
                                                        0,
                                                        2,
                                                        true,
                                                        BarcodeRotation.Clockwise_180);
        using (Image image = Image.FromStream(new MemoryStream(dataBarcode13)))
        {
            image.Save("rotation_180_clockwise.png", System.Drawing.Imaging.ImageFormat.Png);
        }

        byte[] dataBarcode13 = BarcodesMaker.GetBarcode("ABC0123456789123abc,;.",
                                                        BarcodeType.GS1_128B,
                                                        Color.Black,
                                                        Color.White,
                                                        true,
                                                        0,
                                                        2,
                                                        true,
                                                        BarcodeRotation.Clockwise_270);
        using (Image image = Image.FromStream(new MemoryStream(dataBarcode13)))
        {
            image.Save("rotation_270_clockwise.png", System.Drawing.Imaging.ImageFormat.Png);
        }       
    }
}

We have successfully saved the barcode images: EAN8, EAN13, GS1-128, QR Code.

Parameters

List of parameters of user API methods:

EAN8, EAN13, UPC-A, GS1-128A, GS1-128B, GS1-128C barcodes:

  • data - the input data for the barcode.
  • barcodeType - the barcode type.
  • lineColor - the color of barcode lines.
  • backColor - the background color.
  • showDataLabel - defines whether the input data is printed under the barcode lines.
  • heightToCut - the height in pixels or in percent to be cut from the top of the barcode lines to reduce the standard height.
  • scaleMultiplier - the pixel scaling of the resulting barcode image.
  • hasQuietZones - defines whether the barcode has quiet zones.
  • barcodeRotation - defines barcode rotation angle.

QR codes:

  • encoding - the QR code encoding.
  • levelCorrection - the level of error correction.
  • foregroundColor - the QR code color.
  • backgroundColor - the background color.
  • scaleMultiplier - the pixel scaling of the resulting QRcode image.
  • hasQuietZones - defines whether the QR code has quiet zones.

More information

For more information about Gehtsoft.Barcodes, follow these links:

  • If you need to use barcodes or QR codes in PDF documents, we offer our own Gehtsoft PDFFlow library for efficient, quick and easy creation of PDF documents of any complexity. Gehtsoft.PDFFlow is an excellent C# library that allows developers to easily generate complex documents for real business applications. PDFFlow utilizes the Gehtsoft.Barcodes library to generate barcodes and QR codes and offers many additional formatting and layouting options.

Contacts

To report issues with the library or request changes or features, please open an issue at https://github.com/gehtsoft-usa/Gehtsoft.Barcodes/issues.

We welcome contributions to the project. Please contact us at [email protected] if you would like to include your work in the library.

License

The library is shared under GNU LGPL license and is free to use. Please consult the GNU LGPL license for details on proper usage of the library.

THE CODE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.


*Note that all licence references and agreements mentioned in the Gehtsoft.Barcodes README section above are relevant to that project's source code only.