Read Barcodes from Images in C#
- # Use C# to read barcodes from images in C# & VB .NET
- # Read Barcodes & QR from scanned images
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Examples
using IronBarCode;
using System;
using System.Drawing; // Include a reference to System.Drawing.Dll
/*** GET STARED WITH BARCODE READING ***/
// Read almost any Barcode or QR in 1 line of Code.
BarcodeResult QRResult = BarcodeReader.QuicklyReadOneBarcode("QR.png");
// Work with the results
if (QRResult != null)
{
string Value = QRResult.Value;
Bitmap Img = QRResult.BarcodeImage;
BarcodeEncoding BarcodeType = QRResult.BarcodeType;
byte[] Binary = QRResult.BinaryValue;
Console.WriteLine(QRResult.Value);
}
// Setting the optional BarcodeEncoding and TryHarder settings will improve performance
BarcodeResult QRBetterResult = BarcodeReader.QuicklyReadOneBarcode("QR.png", BarcodeEncoding.QRCode, true);
// Multiple Barcode Formats May be Specified using the | Pipe Operator
BarcodeResult FormatsResult = BarcodeReader.QuicklyReadOneBarcode("QR.png", BarcodeEncoding.QRCode | BarcodeEncoding.PDF417 | BarcodeEncoding.Code128);
/*** READING MULTIPLE BARCODES FROM 1 IMAGE OR PDF DOCUMENT ***/
// Multiple barcodes may be scanned up from a single document or image. A PDF document may also used as the input image
BarcodeResult[] PDFResults = BarcodeReader.QuicklyReadAllBarcodes("MultipleBarcodes.pdf", BarcodeEncoding.AllOneDimensional, true);
// Work with the results
foreach (var PDFResult in PDFResults)
{
string Value = PDFResult.Value;
Bitmap Img = PDFResult.BarcodeImage;
BarcodeEncoding BarcodeType = PDFResult.BarcodeType;
byte[] Binary = PDFResult.BinaryValue;
Console.WriteLine(PDFResult.Value);
}
// Multi frame TIFF and GIF images can also be scanned, and multiple threads will be used automatically in the background for improved performance
BarcodeResult[] MultiFrameResults = BarcodeReader.ReadBarcodesFromMultiFrameTiff("Multiframe.tiff", BarcodeEncoding.Code128, BarcodeReader.BarcodeRotationCorrection.Low, BarcodeReader.BarcodeImageCorrection.None);
// The BarcodeResult.ReadBarcodesMultiThreaded method allows for faster barcode scanning of multiple images or PDFs. All threads are automatically managed by IronBarCode.
var ListOfDocuments = new[] { "Image1.png", "image2.JPG", "image3.pdf" };
PagedBarcodeResult[] BatchResults = BarcodeReader.ReadBarcodesMultiThreaded(ListOfDocuments);
/*** READING BARCODES FROM ONLY PART OF AN IMAGE OR DOCUMENT ***/
// All BarcodeResult.Read methods all have counterparts that support only scanning for barcodes in specific parts of documents.
// This really helps performance when processing batches of similar documents, forms, tickets, financial documents etc.
System.Drawing.Rectangle MyCropArea = new Rectangle { X = 165, Y = 225, Width = 500, Height = 200 }; // measured in pixels
BarcodeResult[] InvoiceResults = BarcodeReader.ReadAllBarcodesInCropArea("Invoice.Tiff", MyCropArea, BarcodeEncoding.Code128);
// To read barcodes from only 1 or selected pages of a PDF, the ReadBarcodesFromPdfPage and ReadBarcodesFromPdfPages methods can be used.
// Page numbers are 1 based (the first page is 1 not zero)
PagedBarcodeResult[] Page3ScanResults = BarcodeReader.ReadBarcodesFromPdfPage("PileofInvoices.pdf", 3, BarcodeEncoding.PDF417);Imports IronBarCode
Imports System
Imports System.Drawing ' Include a reference to System.Drawing.Dll
'''* GET STARED WITH BARCODE READING **
' Read almost any Barcode or QR in 1 line of Code.
Private QRResult As BarcodeResult = BarcodeReader.QuicklyReadOneBarcode("QR.png")
' Work with the results
If QRResult IsNot Nothing Then
Dim Value As String = QRResult.Value
Dim Img As Bitmap = QRResult.BarcodeImage
Dim BarcodeType As BarcodeEncoding = QRResult.BarcodeType
Dim Binary() As Byte = QRResult.BinaryValue
Console.WriteLine(QRResult.Value)
End If
' Setting the optional BarcodeEncoding and TryHarder settings will improve performance
Dim QRBetterResult As BarcodeResult = BarcodeReader.QuicklyReadOneBarcode("QR.png", BarcodeEncoding.QRCode, True)
' Multiple Barcode Formats May be Specified using the | Pipe Operator
Dim FormatsResult As BarcodeResult = BarcodeReader.QuicklyReadOneBarcode("QR.png", BarcodeEncoding.QRCode Or BarcodeEncoding.PDF417 Or BarcodeEncoding.Code128)
'''* READING MULTIPLE BARCODES FROM 1 IMAGE OR PDF DOCUMENT **
' Multiple barcodes may be scanned up from a single document or image. A PDF document may also used as the input image
Dim PDFResults() As BarcodeResult = BarcodeReader.QuicklyReadAllBarcodes("MultipleBarcodes.pdf", BarcodeEncoding.AllOneDimensional, True)
' Work with the results
For Each PDFResult In PDFResults
Dim Value As String = PDFResult.Value
Dim Img As Bitmap = PDFResult.BarcodeImage
Dim BarcodeType As BarcodeEncoding = PDFResult.BarcodeType
Dim Binary() As Byte = PDFResult.BinaryValue
Console.WriteLine(PDFResult.Value)
Next PDFResult
' Multi frame TIFF and GIF images can also be scanned, and multiple threads will be used automatically in the background for improved performance
Dim MultiFrameResults() As BarcodeResult = BarcodeReader.ReadBarcodesFromMultiFrameTiff("Multiframe.tiff", BarcodeEncoding.Code128, BarcodeReader.BarcodeRotationCorrection.Low, BarcodeReader.BarcodeImageCorrection.None)
' The BarcodeResult.ReadBarcodesMultiThreaded method allows for faster barcode scanning of multiple images or PDFs. All threads are automatically managed by IronBarCode.
Dim ListOfDocuments = { "Image1.png", "image2.JPG", "image3.pdf" }
Dim BatchResults() As PagedBarcodeResult = BarcodeReader.ReadBarcodesMultiThreaded(ListOfDocuments)
'''* READING BARCODES FROM ONLY PART OF AN IMAGE OR DOCUMENT **
' All BarcodeResult.Read methods all have counterparts that support only scanning for barcodes in specific parts of documents.
' This really helps performance when processing batches of similar documents, forms, tickets, financial documents etc.
Dim MyCropArea As System.Drawing.Rectangle = New Rectangle With {
.X = 165,
.Y = 225,
.Width = 500,
.Height = 200
}
Dim InvoiceResults() As BarcodeResult = BarcodeReader.ReadAllBarcodesInCropArea("Invoice.Tiff", MyCropArea, BarcodeEncoding.Code128)
' To read barcodes from only 1 or selected pages of a PDF, the ReadBarcodesFromPdfPage and ReadBarcodesFromPdfPages methods can be used.
' Page numbers are 1 based (the first page is 1 not zero)
Dim Page3ScanResults() As PagedBarcodeResult = BarcodeReader.ReadBarcodesFromPdfPage("PileofInvoices.pdf", 3, BarcodeEncoding.PDF417)using IronBarCode;
using System.Drawing;
// Creating a barcode is as simple as:
var myBarcode = BarcodeWriter.CreateBarcode("12345", BarcodeWriterEncoding.EAN8);
// And save our barcode as in image:
myBarcode.SaveAsImage("EAN8.jpeg");
Image myBarcodeImage = myBarcode.Image; // Can be used as Image
Bitmap myBarcodeBitmap = myBarcode.ToBitmap(); // Can be used as Bitmap
// Reading a barcode is easy with IronBarcode:
var resultFromFile = BarcodeReader.Read(@"file/barcode.png"); // From a file
var resultFromBitMap = BarcodeReader.Read(new Bitmap("barcode.bmp")); // From a bitmap
var resultFromImage = BarcodeReader.Read(Image.FromFile("barcode.jpg")); // From an image
var resultFromPdf = BarcodeReader.ReadPdf(@"file/mydocument.pdf"); // From PDF use ReadPdf
// After creating a barcode, we may choose to resize and save which is easily done with:
var myNewBarcode = BarcodeWriter.CreateBarcode("12345", BarcodeWriterEncoding.EAN8);
myNewBarcode.ResizeTo(400, 100);
myNewBarcode.SaveAsImage("myBarcodeResized.jpeg");
// To set more options and optimization with your Barcode Reading,
// Please utilize the BarcodeReaderOptions paramter of read:
BarcodeReaderOptions myOptionsExample = new BarcodeReaderOptions()
{
// Choose a speed from: Faster, Balanced, Detailed, ExtremeDetail
// There is a tradeoff in performance as more Detail is set
Speed = ReadingSpeed.Balanced,
// Reader will stop scanning once a barcode is found, unless set to true
ExpectMultipleBarcodes = true,
// By default, all barcode formats are scanned for.
// Specifying one or more, performance will increase.
ExpectBarcodeTypes = BarcodeEncoding.AllOneDimensional,
// Utilizes multiple threads to reads barcodes from multiple images in parallel.
Multithreaded = true,
// Maximum threads for parallel. Default is 4
MaxParallelThreads = 2,
// The area of each image frame in which to scan for barcodes.
// Will improve perfornace significantly and avoid unwanted results and avoid noisy parts of the image.
CropArea = new System.Drawing.Rectangle(),
// Special Setting for Code39 Barcodes.
// If a Code39 barcode is detected. Try to use extended mode for the full ASCII Character Set
UseCode39ExtendedMode = true
};
// And, apply:
var results = BarcodeReader.Read("barcode.png", myOptionsExample);Imports IronBarCode
Imports System.Drawing
' Creating a barcode is as simple as:
Private myBarcode = BarcodeWriter.CreateBarcode("12345", BarcodeWriterEncoding.EAN8)
' And save our barcode as in image:
myBarcode.SaveAsImage("EAN8.jpeg")
Dim myBarcodeImage As Image = myBarcode.Image ' Can be used as Image
Dim myBarcodeBitmap As Bitmap = myBarcode.ToBitmap() ' Can be used as Bitmap
' Reading a barcode is easy with IronBarcode:
Dim resultFromFile = BarcodeReader.Read("file/barcode.png") ' From a file
Dim resultFromBitMap = BarcodeReader.Read(New Bitmap("barcode.bmp")) ' From a bitmap
Dim resultFromImage = BarcodeReader.Read(Image.FromFile("barcode.jpg")) ' From an image
Dim resultFromPdf = BarcodeReader.ReadPdf("file/mydocument.pdf") ' From PDF use ReadPdf
' After creating a barcode, we may choose to resize and save which is easily done with:
Dim myNewBarcode = BarcodeWriter.CreateBarcode("12345", BarcodeWriterEncoding.EAN8)
myNewBarcode.ResizeTo(400, 100)
myNewBarcode.SaveAsImage("myBarcodeResized.jpeg")
' To set more options and optimization with your Barcode Reading,
' Please utilize the BarcodeReaderOptions paramter of read:
Dim myOptionsExample As New BarcodeReaderOptions() With {
.Speed = ReadingSpeed.Balanced,
.ExpectMultipleBarcodes = True,
.ExpectBarcodeTypes = BarcodeEncoding.AllOneDimensional,
.Multithreaded = True,
.MaxParallelThreads = 2,
.CropArea = New System.Drawing.Rectangle(),
.UseCode39ExtendedMode = True
}
' And, apply:
Dim results = BarcodeReader.Read("barcode.png", myOptionsExample)using IronBarCode;
using System.Linq;
// Choose which filters are to be applied (in order);
var filtersToApply = new ImageFilterCollection() {
new SharpenFilter(),
new InvertFilter(),
new ContrastFilter(),
new BrightnessFilter(),
new AdaptiveThresholdFilter(),
new BinaryThresholdFilter()
};
BarcodeReaderOptions myOptionsExample = new BarcodeReaderOptions()
{
// Set chosen filters in BarcodeReaderOptions:
ImageFilters = filtersToApply,
// Other Barcode Reader Options:
Speed = ReadingSpeed.Balanced,
ExpectMultipleBarcodes = true,
};
// And, apply with a Read:
BarcodeResults results = BarcodeReader.Read("screenshot.png", myOptionsExample);
AnyBitmap[] filteredImages = results.FilterImages();
// Export file to disk
for (int i = 0; i < filterImages.Count(); i++)
filterImages[i].SaveAs($"{i}_barcode.png");
// Or
results.ExportFilterImagesToDisk("filter-result.jpg");Imports IronBarCode
Imports System.Linq
' Choose which filters are to be applied (in order);
Private filtersToApply = New ImageFilterCollection() From {
New SharpenFilter(),
New InvertFilter(),
New ContrastFilter(),
New BrightnessFilter(),
New AdaptiveThresholdFilter(),
New BinaryThresholdFilter()
}
Private myOptionsExample As New BarcodeReaderOptions() With {
.ImageFilters = filtersToApply,
.Speed = ReadingSpeed.Balanced,
.ExpectMultipleBarcodes = True
}
' And, apply with a Read:
Private results As BarcodeResults = BarcodeReader.Read("screenshot.png", myOptionsExample)
Private filteredImages() As AnyBitmap = results.FilterImages()
' Export file to disk
For i As Integer = 0 To filterImages.Count() - 1
filterImages(i).SaveAs($"{i}_barcode.png")
Next i
' Or
results.ExportFilterImagesToDisk("filter-result.jpg")using IronBarCode;
using System.Drawing; // Include a reference to System.Drawing.Dll
/*** CREATING BARCODE IMAGES ***/
// Shorthand:: Create and save a barcode in a single line of code
BarcodeWriter.CreateBarcode("12345", BarcodeWriterEncoding.EAN8).ResizeTo(400, 100).SaveAsImage("EAN8.jpeg");
/***** IN-DEPTH BARCODE CREATION OPTIONS *****/
// BarcodeWriter.CreateBarcode creates a GeneratedBarcode which can be styles and exported as an Image object or File
GeneratedBarcode MyBarCode = BarcodeWriter.CreateBarcode("Any Number, String or Binary Value", BarcodeWriterEncoding.Code128);
// Style the Barcode in a fluent LINQ style fashion
MyBarCode.ResizeTo(300, 150).SetMargins(20).AddAnnotationTextAboveBarcode("Example EAN8 Barcode").AddBarcodeValueTextBelowBarcode();
MyBarCode.ChangeBackgroundColor(Color.LightGoldenrodYellow);
// Save MyBarCode as an image file
MyBarCode.SaveAsImage("MyBarCode.png");
MyBarCode.SaveAsGif("MyBarCode.gif");
MyBarCode.SaveAsHtmlFile("MyBarCode.html");
MyBarCode.SaveAsJpeg("MyBarCode.jpg");
MyBarCode.SaveAsPdf("MyBarCode.Pdf");
MyBarCode.SaveAsPng("MyBarCode.png");
MyBarCode.SaveAsTiff("MyBarCode.tiff");
MyBarCode.SaveAsWindowsBitmap("MyBarCode.bmp");
// Save MyBarCode as a .NET native objects
Image MyBarCodeImage = MyBarCode.Image;
Bitmap MyBarCodeBitmap = MyBarCode.ToBitmap();
byte[] PngBytes = MyBarCode.ToPngBinaryData();
using (System.IO.Stream PdfStream = MyBarCode.ToPdfStream())
{
// Stream barcode image output also works for GIF,JPEG, PDF, PNG, BMP and TIFF
}
// Save MyBarCode as HTML files and tags
MyBarCode.SaveAsHtmlFile("MyBarCode.Html");
string ImgTagForHTML = MyBarCode.ToHtmlTag();
string DataURL = MyBarCode.ToDataUrl();
// Save MyBarCode to a new PDF, or stamp it in any position on any page(s) of an existing Document
MyBarCode.SaveAsPdf("MyBarCode.Pdf");
MyBarCode.StampToExistingPdfPage("ExistingPDF.pdf", 200, 50, 1); // position 200x50 on page 1
MyBarCode.StampToExistingPdfPages("ExistingPDF.pdf", 200, 50, new[] { 1, 2, 3 }, "Password123"); // multiple pages of an encrypted PDFImports IronBarCode
Imports System.Drawing ' Include a reference to System.Drawing.Dll
'''* CREATING BARCODE IMAGES **
' Shorthand:: Create and save a barcode in a single line of code
BarcodeWriter.CreateBarcode("12345", BarcodeWriterEncoding.EAN8).ResizeTo(400, 100).SaveAsImage("EAN8.jpeg")
'''*** IN-DEPTH BARCODE CREATION OPTIONS ****
' BarcodeWriter.CreateBarcode creates a GeneratedBarcode which can be styles and exported as an Image object or File
Dim MyBarCode As GeneratedBarcode = BarcodeWriter.CreateBarcode("Any Number, String or Binary Value", BarcodeWriterEncoding.Code128)
' Style the Barcode in a fluent LINQ style fashion
MyBarCode.ResizeTo(300, 150).SetMargins(20).AddAnnotationTextAboveBarcode("Example EAN8 Barcode").AddBarcodeValueTextBelowBarcode()
MyBarCode.ChangeBackgroundColor(Color.LightGoldenrodYellow)
' Save MyBarCode as an image file
MyBarCode.SaveAsImage("MyBarCode.png")
MyBarCode.SaveAsGif("MyBarCode.gif")
MyBarCode.SaveAsHtmlFile("MyBarCode.html")
MyBarCode.SaveAsJpeg("MyBarCode.jpg")
MyBarCode.SaveAsPdf("MyBarCode.Pdf")
MyBarCode.SaveAsPng("MyBarCode.png")
MyBarCode.SaveAsTiff("MyBarCode.tiff")
MyBarCode.SaveAsWindowsBitmap("MyBarCode.bmp")
' Save MyBarCode as a .NET native objects
Dim MyBarCodeImage As Image = MyBarCode.Image
Dim MyBarCodeBitmap As Bitmap = MyBarCode.ToBitmap()
Dim PngBytes() As Byte = MyBarCode.ToPngBinaryData()
Using PdfStream As System.IO.Stream = MyBarCode.ToPdfStream()
' Stream barcode image output also works for GIF,JPEG, PDF, PNG, BMP and TIFF
End Using
' Save MyBarCode as HTML files and tags
MyBarCode.SaveAsHtmlFile("MyBarCode.Html")
Dim ImgTagForHTML As String = MyBarCode.ToHtmlTag()
Dim DataURL As String = MyBarCode.ToDataUrl()
' Save MyBarCode to a new PDF, or stamp it in any position on any page(s) of an existing Document
MyBarCode.SaveAsPdf("MyBarCode.Pdf")
MyBarCode.StampToExistingPdfPage("ExistingPDF.pdf", 200, 50, 1) ' position 200x50 on page 1
MyBarCode.StampToExistingPdfPages("ExistingPDF.pdf", 200, 50, { 1, 2, 3 }, "Password123") ' multiple pages of an encrypted PDFusing System;
using IronBarCode;
using System.Drawing; // Include a reference to System.Drawing.Dll
/*** STYING GENERATED BARCODES ***/
// BarcodeWriter.CreateBarcode creates a GeneratedBarcode object which allows the barcode to be styled and annotated.
GeneratedBarcode MyBarCode = BarcodeWriter.CreateBarcode("Iron Software", BarcodeWriterEncoding.QRCode);
// Any text (or commonly, the value of the barcode) can be added to the image in a default or specified font.
// Text positions are automatically centered, above or below. Fonts that are too large for a given image are automatically scaled down.
MyBarCode.AddBarcodeValueTextBelowBarcode();
MyBarCode.AddAnnotationTextAboveBarcode("This is My Barcode", new Font(new FontFamily("Arial"), 12, FontStyle.Regular, GraphicsUnit.Pixel), Color.DarkSlateBlue);
// Resize, add Margins and Check final Image Dimensions
MyBarCode.ResizeTo(300, 300); // pixels
MyBarCode.SetMargins(0, 20, 0, 20);
int FinalWidth = MyBarCode.Width;
int FinalHeight = MyBarCode.Height;
//Recolor the barcode and its background
MyBarCode.ChangeBackgroundColor(Color.LightGray);
MyBarCode.ChangeBarCodeColor(Color.DarkSlateBlue);
if (!MyBarCode.Verify())
{
Console.WriteLine("Color contrast should be at least 50% or a barcode may become unreadable. Test using GeneratedBarcode.Verify()");
}
// Finally save the result
MyBarCode.SaveAsHtmlFile("StyledBarcode.html");
/*** STYING BARCODES IN A SINGLE LINQ STYLE EXPRESSION ***/
// Fluent API
BarcodeWriter.CreateBarcode("https://ironsoftware.com", BarcodeWriterEncoding.Aztec).ResizeTo(250, 250).SetMargins(10).AddBarcodeValueTextAboveBarcode().SaveAsImage("StyledBarcode.png");
/*** STYING QR CODES WITH LOGO IMAGES OR BRANDING ***/
// Use the QRCodeWriter.CreateQrCodeWithLogo Method instead of BarcodeWriter.CreateBarcode
// Logo will automatically be sized appropriately and snapped to the QR grid.
GeneratedBarcode QRWithLogo = QRCodeWriter.CreateQrCodeWithLogo("https://visualstudio.microsoft.com/", "visual-studio-logo.png");
QRWithLogo.ResizeTo(500, 500).SetMargins(10).ChangeBarCodeColor(Color.DarkGreen);
QRWithLogo.SaveAsPng("QRWithLogo.Png").SaveAsPdf("MyVerifiedQR.html"); // save as 2 formats Imports System
Imports IronBarCode
Imports System.Drawing ' Include a reference to System.Drawing.Dll
'''* STYING GENERATED BARCODES **
' BarcodeWriter.CreateBarcode creates a GeneratedBarcode object which allows the barcode to be styled and annotated.
Private MyBarCode As GeneratedBarcode = BarcodeWriter.CreateBarcode("Iron Software", BarcodeWriterEncoding.QRCode)
' Any text (or commonly, the value of the barcode) can be added to the image in a default or specified font.
' Text positions are automatically centered, above or below. Fonts that are too large for a given image are automatically scaled down.
MyBarCode.AddBarcodeValueTextBelowBarcode()
MyBarCode.AddAnnotationTextAboveBarcode("This is My Barcode", New Font(New FontFamily("Arial"), 12, FontStyle.Regular, GraphicsUnit.Pixel), Color.DarkSlateBlue)
' Resize, add Margins and Check final Image Dimensions
MyBarCode.ResizeTo(300, 300) ' pixels
MyBarCode.SetMargins(0, 20, 0, 20)
Dim FinalWidth As Integer = MyBarCode.Width
Dim FinalHeight As Integer = MyBarCode.Height
'Recolor the barcode and its background
MyBarCode.ChangeBackgroundColor(Color.LightGray)
MyBarCode.ChangeBarCodeColor(Color.DarkSlateBlue)
If Not MyBarCode.Verify() Then
Console.WriteLine("Color contrast should be at least 50% or a barcode may become unreadable. Test using GeneratedBarcode.Verify()")
End If
' Finally save the result
MyBarCode.SaveAsHtmlFile("StyledBarcode.html")
'''* STYING BARCODES IN A SINGLE LINQ STYLE EXPRESSION **
' Fluent API
BarcodeWriter.CreateBarcode("https://ironsoftware.com", BarcodeWriterEncoding.Aztec).ResizeTo(250, 250).SetMargins(10).AddBarcodeValueTextAboveBarcode().SaveAsImage("StyledBarcode.png")
'''* STYING QR CODES WITH LOGO IMAGES OR BRANDING **
' Use the QRCodeWriter.CreateQrCodeWithLogo Method instead of BarcodeWriter.CreateBarcode
' Logo will automatically be sized appropriately and snapped to the QR grid.
Dim QRWithLogo As GeneratedBarcode = QRCodeWriter.CreateQrCodeWithLogo("https://visualstudio.microsoft.com/", "visual-studio-logo.png")
QRWithLogo.ResizeTo(500, 500).SetMargins(10).ChangeBarCodeColor(Color.DarkGreen)
QRWithLogo.SaveAsPng("QRWithLogo.Png").SaveAsPdf("MyVerifiedQR.html") ' save as 2 formatsusing IronBarCode;
/*** EXPORTING BARCODES AS HTML FILES OR TAGS ***/
GeneratedBarcode MyBarCode = BarcodeWriter.CreateBarcode("1234567890", BarcodeWriterEncoding.Code128);
// Save as a stand-alone HTML file with no image assets required
MyBarCode.SaveAsHtmlFile("MyBarCode.html");
// Save as a stand-alone HTML image tag which can be served in HTML files, ASPX or MVC Views. No image assets required, the tag embeds the entire image in its Src contents
string ImgTag = MyBarCode.ToHtmlTag();
// Turn the image into an Html/CSS Data URI. https://en.wikipedia.org/wiki/Data_URI_scheme
string DataURI = MyBarCode.ToDataUrl();Imports IronBarCode
'''* EXPORTING BARCODES AS HTML FILES OR TAGS **
Private MyBarCode As GeneratedBarcode = BarcodeWriter.CreateBarcode("1234567890", BarcodeWriterEncoding.Code128)
' Save as a stand-alone HTML file with no image assets required
MyBarCode.SaveAsHtmlFile("MyBarCode.html")
' Save as a stand-alone HTML image tag which can be served in HTML files, ASPX or MVC Views. No image assets required, the tag embeds the entire image in its Src contents
Dim ImgTag As String = MyBarCode.ToHtmlTag()
' Turn the image into an Html/CSS Data URI. https://en.wikipedia.org/wiki/Data_URI_scheme
Dim DataURI As String = MyBarCode.ToDataUrl()
