Class BarcodeEncoding

PDF Barcode Encoding Types. Please check the supported characters for each encoding type as some do not support all symbols.

Setting a BarcodeEncoding when rendering Barcodes chooses the type and design of barcode to be generated.

// Add product barcode:
var barcode = new BarcodeStamper("ABC123456", BarcodeEncoding.Code128);
pdf.ApplyStamp(barcode);

// Add QR code for URL:
var qr = new BarcodeStamper("https://example.com", BarcodeEncoding.QRCode);
pdf.ApplyStamp(qr);


// Add inventory code:
var code39 = new BarcodeStamper("ITEM-12345", BarcodeEncoding.Code39);
pdf.ApplyStamp(code39);

See: https://ironpdf.com/how-to/add-barcodes-to-pdfs/

Inheritance
System.Object
BarcodeEncoding
Namespace: IronPdf.Editing
Assembly: IronPdf.dll
Syntax
public sealed class BarcodeEncoding : Enum

Fields

Code128

Code 128 (1D barcode format). Code 128 is a high-density linear barcode symbology defined in ISO/IEC 15417:2007. Best for shipping labels, inventory, and product identification.

Supported characters include: All alphabetic and numeric characters. 
// Product SKU barcode:
var sku = new BarcodeStamper("SKU-2024-001", BarcodeEncoding.Code128)
{
    Width = 250,
    Height = 50
};
pdf.ApplyStamp(sku);

// Shipping tracking number:
var tracking = new BarcodeStamper("1Z999AA10123456784",
BarcodeEncoding.Code128);


// Serial number with mixed case:
var serial = new BarcodeStamper("SN-abc123XYZ", BarcodeEncoding.Code128);

Most compact 1D barcode, supports full ASCII character set

Ideal for alphanumeric data, widely supported by scanners

Declaration
public const BarcodeEncoding Code128
Field Value
Type Description
BarcodeEncoding

Code39

Code 39 (1D barcode format). Code 39 is a variable length, discrete barcode symbology. The Code 39 specification defines 43 characters. Common in automotive, defense, and government applications.

Supported characters include: Digits from (0-9), Uppercase (A through Z), and these symbols: (-.$/+% space) 
// Part number (uppercase only):
var part = new BarcodeStamper("PART-12345", BarcodeEncoding.Code39);
pdf.ApplyStamp(part);

// Military/DoD labeling:
var mil = new BarcodeStamper("NSN-5965-01", BarcodeEncoding.Code39);


// VIN number for automotive:
var vin = new BarcodeStamper("1HGBH41JXMN109186", BarcodeEncoding.Code39);

Industry standard for automotive and defense

Limited to 43 characters - uppercase letters, numbers, and special symbols only

Declaration
public const BarcodeEncoding Code39
Field Value
Type Description
BarcodeEncoding

QRCode

QR Code (2D barcode format). QR code (abbreviated from Quick Response Code) is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes to efficiently store data. Perfect for mobile scanning, URLs, contact information, and large data storage.

Supported characters include: All numeric, alphanumeric, byte/binary, and Japanese kanji. 
// Website URL:
var qr = new BarcodeStamper("https://ironpdf.com",
    BarcodeEncoding.QRCode);
pdf.ApplyStamp(qr);

// Contact vCard:
var vcard = @"BEGIN:VCARD
VERSION:3.0
FN:John Doe
TEL:555-1234
EMAIL:john@example.com
END:VCARD";
var contact = new BarcodeStamper(vcard, BarcodeEncoding.QRCode);


// WiFi credentials:
var wifi = "WIFI:T:WPA;S:NetworkName;P:Password;;";
var wifiQR = new BarcodeStamper(wifi, BarcodeEncoding.QRCode);


// Japanese text with Kanji:
var japanese = new BarcodeStamper("こんにちは世界", BarcodeEncoding.QRCode);

Holds up to 4,296 alphanumeric characters or 2,953 bytes of binary data

Supports Kanji, making it ideal for Asian markets

See: https://ironpdf.com/examples/qr-code-generator/

Declaration
public const BarcodeEncoding QRCode
Field Value
Type Description
BarcodeEncoding

value__

Declaration
public int value__
Field Value
Type Description
System.Int32