面向 .NET 开发人员的 C# HTML 转 PDF（终极指南）

using IronPdf;
class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();
        PdfDocument pdf = renderer.RenderHtmlAsPdf("<h1>Hello, World!</h1>");
        PDF.SaveAs("output.pdf");
    }
}

Imports IronPdf
Friend Class Program
	Shared Sub Main(ByVal args() As String)
		Dim renderer = New ChromePdfRenderer()
		Dim pdf As PdfDocument = renderer.RenderHtmlAsPdf("<h1>Hello, World!</h1>")
		PDF.SaveAs("output.pdf")
	End Sub
End Class

using IronPdf;
class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();
        PdfDocument pdf = renderer.RenderHtmlFileAsPdf("template.html");
        pdf.SaveAs("report.pdf");
    }
}

Imports IronPdf
Friend Class Program
	Shared Sub Main(ByVal args() As String)
		Dim renderer = New ChromePdfRenderer()
		Dim pdf As PdfDocument = renderer.RenderHtmlFileAsPdf("template.html")
		pdf.SaveAs("report.pdf")
	End Sub
End Class

using IronPdf;
class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();
        PdfDocument pdf = renderer.RenderUrlAsPdf("https://ironpdf.com");
        pdf.SaveAs("url-to-pdf.pdf");
    }
}

Imports IronPdf
Friend Class Program
	Shared Sub Main(ByVal args() As String)
		Dim renderer = New ChromePdfRenderer()
		Dim pdf As PdfDocument = renderer.RenderUrlAsPdf("https://ironpdf.com")
		pdf.SaveAs("url-to-pdf.pdf")
	End Sub
End Class

using Aspose.Html;
Document doc = new Document();
Page page = doc.getPages().add();
HtmlFragment htmlFragment = new HtmlFragment("<h1>HTML String</h1>");
page.getParagraphs().add(htmlFragment);
doc.save(dataDir + "HTMLStringUsingDOM.pdf");

Imports Aspose.Html
Private doc As New Document()
Private page As Page = doc.getPages().add()
Private htmlFragment As New HtmlFragment("<h1>HTML String</h1>")
page.getParagraphs().add(htmlFragment)
doc.save(dataDir & "HTMLStringUsingDOM.pdf")

using Aspose.Html;
using Aspose.Html.Converters;
using Aspose.Html.Saving;
    using var document = new HTMLDocument("document.html");
    var options = new PdfSaveOptions();
    Converter.ConvertHTML(document, options, "output.pdf");

Imports Aspose.Html
Imports Aspose.Html.Converters
Imports Aspose.Html.Saving
	Private document = New HTMLDocument("document.html")
	Private options = New PdfSaveOptions()
	Converter.ConvertHTML(document, options, "output.pdf")

using System.IO;
using System;
using System.Net;
using Aspose.Pdf;
string dataDir = "YOUR DOCUMENT DIRECTORY"; // Replace with your path
WebRequest request = WebRequest.Create("https://en.wikipedia.org/wiki/Main_Page");
request.Credentials = CredentialCache.DefaultCredentials;
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
string responseFromServer = reader.ReadToEnd();
reader.Close();
dataStream.Close();
response.Close();
MemoryStream stream = new MemoryStream(System.Text.Encoding.UTF8.GetBytes(responseFromServer));
HtmlLoadOptions options = new HtmlLoadOptions("https://en.wikipedia.org/wiki/");
Document pdfDocument = new Document(stream, options);
pdfDocument.Save(dataDir + "WebPageToPDF_out.pdf");

Imports System.IO
Imports System
Imports System.Net
Imports Aspose.Pdf
Private dataDir As String = "YOUR DOCUMENT DIRECTORY" ' Replace with your path
Private request As WebRequest = WebRequest.Create("https://en.wikipedia.org/wiki/Main_Page")
request.Credentials = CredentialCache.DefaultCredentials
Dim response As HttpWebResponse = CType(request.GetResponse(), HttpWebResponse)
Dim dataStream As Stream = response.GetResponseStream()
Dim reader As New StreamReader(dataStream)
Dim responseFromServer As String = reader.ReadToEnd()
reader.Close()
dataStream.Close()
response.Close()
Dim stream As New MemoryStream(System.Text.Encoding.UTF8.GetBytes(responseFromServer))
Dim options As New HtmlLoadOptions("https://en.wikipedia.org/wiki/")
Dim pdfDocument As New Document(stream, options)
pdfDocument.Save(dataDir & "WebPageToPDF_out.pdf")

public static String DEST = String.Format("{0}test-03.pdf", TARGET);
var html = "<h1>Hello World</h1>";
HtmlConverter.ConvertToPdf(html, new FileStream(dest, FileMode.Create));

Public Shared DEST As String = String.Format("{0}test-03.pdf", TARGET)
Private html = "<h1>Hello World</h1>"
HtmlConverter.ConvertToPdf(html, New FileStream(dest, FileMode.Create))

using iText.Html2pdf;
class Program
{
    static void Main(string[] args)
    {
        HtmlConverter.ConvertToPdf("template.html", new FileStream("html-file-to-pdf.pdf", FileMode.Create));
    }
}

Imports iText.Html2pdf
Friend Class Program
	Shared Sub Main(ByVal args() As String)
		HtmlConverter.ConvertToPdf("template.html", New FileStream("html-file-to-pdf.pdf", FileMode.Create))
	End Sub
End Class

using iText.Html2pdf;
class Program
{
    static void Main(string[] args)
    {
        HtmlConverter.ConvertToPdf("https://example.com", new FileStream("url-to-pdf.pdf", FileMode.Create));
    }
}

Imports iText.Html2pdf
Friend Class Program
	Shared Sub Main(ByVal args() As String)
		HtmlConverter.ConvertToPdf("https://example.com", New FileStream("url-to-pdf.pdf", FileMode.Create))
	End Sub
End Class

using System;
using System.IO;
using System.Diagnostics;
class Program
{
    static void Main(string[] args)
    {
        // HTML string to be converted to PDF
        string html = "<html><body><h1>Hello, World!</h1></body></html>";
        // Write HTML string to temporary file
        string tempHtmlFile = Path.Combine(Path.GetTempPath(), "temp.html");
        File.WriteAllText(tempHtmlFile, html);
        // Set output PDF path
        string outputPdfFile = Path.Combine(Path.GetTempPath(), "html-string-to-pdf.pdf");
        // Execute wkhtmltopdf command
        Process process = new Process();
        process.StartInfo.FileName = "wkhtmltopdf";
        process.StartInfo.Arguments = $"\"{tempHtmlFile}\" \"{outputPdfFile}\"";
        process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
        process.Start();
        process.WaitForExit();
        // Clean up the temporary HTML file
        File.Delete(tempHtmlFile);
        Console.WriteLine($"PDF saved to: {outputPdfFile}");
    }
}

Imports System
Imports System.IO
Imports System.Diagnostics
Friend Class Program
	Shared Sub Main(ByVal args() As String)
		' HTML string to be converted to PDF
		Dim html As String = "<html><body><h1>Hello, World!</h1></body></html>"
		' Write HTML string to temporary file
		Dim tempHtmlFile As String = Path.Combine(Path.GetTempPath(), "temp.html")
		File.WriteAllText(tempHtmlFile, html)
		' Set output PDF path
		Dim outputPdfFile As String = Path.Combine(Path.GetTempPath(), "html-string-to-pdf.pdf")
		' Execute wkhtmltopdf command
		Dim process As New Process()
		process.StartInfo.FileName = "wkhtmltopdf"
		process.StartInfo.Arguments = $"""{tempHtmlFile}"" ""{outputPdfFile}"""
		process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden
		process.Start()
		process.WaitForExit()
		' Clean up the temporary HTML file
		File.Delete(tempHtmlFile)
		Console.WriteLine($"PDF saved to: {outputPdfFile}")
	End Sub
End Class

using System;
using System.Diagnostics;
class Program
{
    static void Main(string[] args)
    {
        // Path to the local HTML file
        string htmlFilePath = @"C:\path\to\your\template.html";
        // Path for the output PDF file
        string outputPdfFile = @"C:\path\to\output\html-file-to-pdf.pdf";
        // Execute wkhtmltopdf command
        Process process = new Process();
        process.StartInfo.FileName = "wkhtmltopdf";
        process.StartInfo.Arguments = $"\"{htmlFilePath}\" \"{outputPdfFile}\"";
        process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
        process.Start();
        process.WaitForExit();
        Console.WriteLine($"PDF saved to: {outputPdfFile}");
    }
}

Imports System
Imports System.Diagnostics
Friend Class Program
	Shared Sub Main(ByVal args() As String)
		' Path to the local HTML file
		Dim htmlFilePath As String = "C:\path\to\your\template.html"
		' Path for the output PDF file
		Dim outputPdfFile As String = "C:\path\to\output\html-file-to-pdf.pdf"
		' Execute wkhtmltopdf command
		Dim process As New Process()
		process.StartInfo.FileName = "wkhtmltopdf"
		process.StartInfo.Arguments = $"""{htmlFilePath}"" ""{outputPdfFile}"""
		process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden
		process.Start()
		process.WaitForExit()
		Console.WriteLine($"PDF saved to: {outputPdfFile}")
	End Sub
End Class

using System;
using System.Diagnostics;
class Program
{
    static void Main(string[] args)
    {
        // URL to be converted to PDF
        string url = "https://example.com";
        // Path for the output PDF file
        string outputPdfFile = @"C:\path\to\output\url-to-pdf.pdf";
        // Execute wkhtmltopdf command
        Process process = new Process();
        process.StartInfo.FileName = "wkhtmltopdf";
        process.StartInfo.Arguments = $"\"{url}\" \"{outputPdfFile}\"";
        process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
        process.Start();
        process.WaitForExit();
        Console.WriteLine($"PDF saved to: {outputPdfFile}");
    }
}

Imports System
Imports System.Diagnostics
Friend Class Program
	Shared Sub Main(ByVal args() As String)
		' URL to be converted to PDF
		Dim url As String = "https://example.com"
		' Path for the output PDF file
		Dim outputPdfFile As String = "C:\path\to\output\url-to-pdf.pdf"
		' Execute wkhtmltopdf command
		Dim process As New Process()
		process.StartInfo.FileName = "wkhtmltopdf"
		process.StartInfo.Arguments = $"""{url}"" ""{outputPdfFile}"""
		process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden
		process.Start()
		process.WaitForExit()
		Console.WriteLine($"PDF saved to: {outputPdfFile}")
	End Sub
End Class

using PuppeteerSharp;
using System;
using System.Threading.Tasks;
class Program
{
    static async Task Main(string[] args)
    {
        // Download the browser if necessary
        await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);
        var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });
        var page = await browser.NewPageAsync();
        string htmlContent = "<h1>Hello, World!</h1><p>This is a PDF generated from HTML string.</p>";
        await page.SetContentAsync(htmlContent);
        // Save the page as a PDF
        await page.PdfAsync("html-string-to-pdf.pdf");
        await browser.CloseAsync();
    }
}

Imports PuppeteerSharp
Imports System
Imports System.Threading.Tasks
Friend Class Program
	Shared Async Function Main(ByVal args() As String) As Task
		' Download the browser if necessary
		Await (New BrowserFetcher()).DownloadAsync(BrowserFetcher.DefaultRevision)
		Dim browser = Await Puppeteer.LaunchAsync(New LaunchOptions With {.Headless = True})
		Dim page = Await browser.NewPageAsync()
		Dim htmlContent As String = "<h1>Hello, World!</h1><p>This is a PDF generated from HTML string.</p>"
		Await page.SetContentAsync(htmlContent)
		' Save the page as a PDF
		Await page.PdfAsync("html-string-to-pdf.pdf")
		Await browser.CloseAsync()
	End Function
End Class

using PuppeteerSharp;
using System;
using System.Threading.Tasks;
class Program
{
    static async Task Main(string[] args)
    {
        // Download the browser if necessary
        await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);
        var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });
        var page = await browser.NewPageAsync();
        // Load the local HTML file
        await page.GoToAsync("file:///path/to/your/template.html");
        // Save the page as a PDF
        await page.PdfAsync("html-file-to-pdf.pdf");
        await browser.CloseAsync();
    }
}

Imports PuppeteerSharp
Imports System
Imports System.Threading.Tasks
Friend Class Program
	Shared Async Function Main(ByVal args() As String) As Task
		' Download the browser if necessary
		Await (New BrowserFetcher()).DownloadAsync(BrowserFetcher.DefaultRevision)
		Dim browser = Await Puppeteer.LaunchAsync(New LaunchOptions With {.Headless = True})
		Dim page = Await browser.NewPageAsync()
		' Load the local HTML file
		Await page.GoToAsync("file:///path/to/your/template.html")
		' Save the page as a PDF
		Await page.PdfAsync("html-file-to-pdf.pdf")
		Await browser.CloseAsync()
	End Function
End Class

using PuppeteerSharp;
using System;
using System.Threading.Tasks;
class Program
{
    static async Task Main(string[] args)
    {
        // Download the browser if necessary
        await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);
        var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });
        var page = await browser.NewPageAsync();
        // Navigate to the URL
        await page.GoToAsync("https://example.com");
        // Save the page as a PDF
        await page.PdfAsync("url-to-pdf.pdf");
        await browser.CloseAsync();
    }
}

Imports PuppeteerSharp
Imports System
Imports System.Threading.Tasks
Friend Class Program
	Shared Async Function Main(ByVal args() As String) As Task
		' Download the browser if necessary
		Await (New BrowserFetcher()).DownloadAsync(BrowserFetcher.DefaultRevision)
		Dim browser = Await Puppeteer.LaunchAsync(New LaunchOptions With {.Headless = True})
		Dim page = Await browser.NewPageAsync()
		' Navigate to the URL
		Await page.GoToAsync("https://example.com")
		' Save the page as a PDF
		Await page.PdfAsync("url-to-pdf.pdf")
		Await browser.CloseAsync()
	End Function
End Class