如何在 C# 中以 PDF 格式导出 BarCode；

using IronBarCode;

GeneratedBarcode myBarcode = BarcodeWriter.CreateBarcode("https://ironsoftware.com/csharp/barcode/", BarcodeEncoding.DataMatrix);
myBarcode.SaveAsPdf("myBarcode.pdf");

Imports IronBarCode

Private myBarcode As GeneratedBarcode = BarcodeWriter.CreateBarcode("https://ironsoftware.com/csharp/barcode/", BarcodeEncoding.DataMatrix)
myBarcode.SaveAsPdf("myBarcode.pdf")

using IronBarCode;
using System;
using System.IO;

// Create a barcode
GeneratedBarcode barcode = BarcodeWriter.CreateBarcode("PRODUCT-12345", BarcodeEncoding.Code128);

// Save to current directory
barcode.SaveAsPdf("barcode.pdf");

// Save to absolute path
barcode.SaveAsPdf(@"C:\BarcodeExports\product_barcode.pdf");

// Save to relative path
barcode.SaveAsPdf(@"..\..\exports\barcode.pdf");

// Save using environment path
string documentsPath = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
barcode.SaveAsPdf(Path.Combine(documentsPath, "barcode.pdf"));

Imports IronBarCode
Imports System
Imports System.IO

' Create a barcode
Dim barcode As GeneratedBarcode = BarcodeWriter.CreateBarcode("PRODUCT-12345", BarcodeEncoding.Code128)

' Save to current directory
barcode.SaveAsPdf("barcode.pdf")

' Save to absolute path
barcode.SaveAsPdf("C:\BarcodeExports\product_barcode.pdf")

' Save to relative path
barcode.SaveAsPdf("..\..\exports\barcode.pdf")

' Save using environment path
Dim documentsPath As String = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments)
barcode.SaveAsPdf(Path.Combine(documentsPath, "barcode.pdf"))

using IronBarCode;

GeneratedBarcode myBarcode = BarcodeWriter.CreateBarcode("https://ironsoftware.com/csharp/barcode/", BarcodeEncoding.DataMatrix);
byte[] myBarcodeByte = myBarcode.ToPdfBinaryData();

Imports IronBarCode

Private myBarcode As GeneratedBarcode = BarcodeWriter.CreateBarcode("https://ironsoftware.com/csharp/barcode/", BarcodeEncoding.DataMatrix)
Private myBarcodeByte() As Byte = myBarcode.ToPdfBinaryData()

using IronBarCode;
using System.Net.Http;
using System.Threading.Tasks;

public async Task SendBarcodeToAPI()
{
    // Generate barcode and get binary data
    GeneratedBarcode barcode = BarcodeWriter.CreateBarcode("API-DATA-123", BarcodeEncoding.QRCode);
    byte[] pdfData = barcode.ToPdfBinaryData();

    // Send via HTTP POST
    using (HttpClient client = new HttpClient())
    {
        ByteArrayContent content = new ByteArrayContent(pdfData);
        content.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/pdf");

        HttpResponseMessage response = await client.PostAsync("https://api.example.com/barcode", content);
        // Handle response
    }
}

Imports IronBarCode
Imports System.Net.Http
Imports System.Threading.Tasks

Public Async Function SendBarcodeToAPI() As Task
    ' Generate barcode and get binary data
    Dim barcode As GeneratedBarcode = BarcodeWriter.CreateBarcode("API-DATA-123", BarcodeEncoding.QRCode)
    Dim pdfData As Byte() = barcode.ToPdfBinaryData()

    ' Send via HTTP POST
    Using client As New HttpClient()
        Dim content As New ByteArrayContent(pdfData)
        content.Headers.ContentType = New System.Net.Http.Headers.MediaTypeHeaderValue("application/pdf")

        Dim response As HttpResponseMessage = Await client.PostAsync("https://api.example.com/barcode", content)
        ' Handle response
    End Using
End Function

using IronBarCode;
using System.IO;

GeneratedBarcode myBarcode = BarcodeWriter.CreateBarcode("https://ironsoftware.com/csharp/barcode/", BarcodeEncoding.DataMatrix);
Stream myBarcodeStream = myBarcode.ToPdfStream();

Imports IronBarCode
Imports System.IO

Private myBarcode As GeneratedBarcode = BarcodeWriter.CreateBarcode("https://ironsoftware.com/csharp/barcode/", BarcodeEncoding.DataMatrix)
Private myBarcodeStream As Stream = myBarcode.ToPdfStream()

using IronBarCode;
using System.IO;

public void ProcessBarcodeStream()
{
    // Always use using statements for proper disposal
    using (Stream pdfStream = BarcodeWriter.CreateBarcode("STREAM-123", BarcodeEncoding.Code39).ToPdfStream())
    {
        // Example 1: Copy to file
        using (FileStream fileStream = File.Create("output.pdf"))
        {
            pdfStream.CopyTo(fileStream);
        }

        // Reset stream position for reuse
        pdfStream.Position = 0;

        // Example 2: Read into buffer
        byte[] buffer = new byte[pdfStream.Length];
        pdfStream.Read(buffer, 0, buffer.Length);

        // Example 3: Process with another library
        // ProcessPdfStream(pdfStream);
    }
}

Imports IronBarCode
Imports System.IO

Public Sub ProcessBarcodeStream()
    ' Always use using statements for proper disposal
    Using pdfStream As Stream = BarcodeWriter.CreateBarcode("STREAM-123", BarcodeEncoding.Code39).ToPdfStream()
        ' Example 1: Copy to file
        Using fileStream As FileStream = File.Create("output.pdf")
            pdfStream.CopyTo(fileStream)
        End Using

        ' Reset stream position for reuse
        pdfStream.Position = 0

        ' Example 2: Read into buffer
        Dim buffer As Byte() = New Byte(pdfStream.Length - 1) {}
        pdfStream.Read(buffer, 0, buffer.Length)

        ' Example 3: Process with another library
        ' ProcessPdfStream(pdfStream)
    End Using
End Sub