如何使用 IronPDF for .NET 在 ASP.NET 中使用 C# 将 HTML 转换为 PDF

var renderer = new ChromePdfRenderer();
string htmlContent = BuildDynamicHtml(); // Your method to generate HTML
var PDF = renderer.RenderHtmlAsPdf(htmlContent);
pdf.SaveAs("dynamic-report.pdf");

Dim renderer As New ChromePdfRenderer()
Dim htmlContent As String = BuildDynamicHtml() ' Your method to generate HTML
Dim PDF = renderer.RenderHtmlAsPdf(htmlContent)
PDF.SaveAs("dynamic-report.pdf")

var renderer = new ChromePdfRenderer();
var PDF = renderer.RenderHtmlFileAsPdf("wwwroot/templates/report-template.html");
pdf.SaveAs("report.pdf");

Dim renderer = New ChromePdfRenderer()
Dim PDF = renderer.RenderHtmlFileAsPdf("wwwroot/templates/report-template.html")
PDF.SaveAs("report.pdf")

var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.EnableJavaScript = true;
renderer.RenderingOptions.WaitFor.RenderDelay(1000); // Wait an extra second for JavaScript to load
renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Screen;
var PDF = renderer.RenderUrlAsPdf("___PROTECTED_URL_79___");
pdf.SaveAs("webpage.pdf");

Dim renderer = New ChromePdfRenderer()
renderer.RenderingOptions.EnableJavaScript = True
renderer.RenderingOptions.WaitFor.RenderDelay(1000) ' Wait an extra second for JavaScript to load
renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Screen
Dim PDF = renderer.RenderUrlAsPdf("___PROTECTED_URL_79___")
pdf.SaveAs("webpage.pdf")

var renderer = new ChromePdfRenderer();
// Configure headers and footers
renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter
{
    MaxHeight = 25,
    HtmlFragment = "<div style='text-align:center'>Annual Report 2024</div>"
};
renderer.RenderingOptions.HtmlFooter = new HtmlHeaderFooter
{
    MaxHeight = 20,
    HtmlFragment = "<div style='text-align:center'>Page {page} of {total-pages}</div>"
};
// Generate PDF
var PDF = renderer.RenderHtmlAsPdf(htmlContent);
// Add watermark
pdf.ApplyWatermark("<h2 style='color:red;opacity:0.3'>CONFIDENTIAL</h2>",
    30, VerticalAlignment.Middle, HorizontalAlignment.Center);
pdf.SaveAs("report-with-watermark.pdf");

Imports IronPdf

Dim renderer As New ChromePdfRenderer()
' Configure headers and footers
renderer.RenderingOptions.HtmlHeader = New HtmlHeaderFooter With {
    .MaxHeight = 25,
    .HtmlFragment = "<div style='text-align:center'>Annual Report 2024</div>"
}
renderer.RenderingOptions.HtmlFooter = New HtmlHeaderFooter With {
    .MaxHeight = 20,
    .HtmlFragment = "<div style='text-align:center'>Page {page} of {total-pages}</div>"
}
' Generate PDF
Dim PDF = renderer.RenderHtmlAsPdf(htmlContent)
' Add watermark
PDF.ApplyWatermark("<h2 style='color:red;opacity:0.3'>CONFIDENTIAL</h2>",
    30, VerticalAlignment.Middle, HorizontalAlignment.Center)
PDF.SaveAs("report-with-watermark.pdf")

var renderer = new ChromePdfRenderer();
// Configure CSS media type
renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Print;
// Set viewport for responsive designs
renderer.RenderingOptions.ViewPortWidth = 1024;
// Configure margins
renderer.RenderingOptions.MarginTop = 10;
renderer.RenderingOptions.MarginBottom = 10;
renderer.RenderingOptions.MarginLeft = 10;
renderer.RenderingOptions.MarginRight = 10;
string HTML = @"
    <style>
        @media print {
            .no-print { display: none; }
            body { font-size: 12pt; }
            .page-break { page-break-after: always; }
        }
        @page {
            size: A4;
            margin: 1cm;
        }
    </style>
    <div class='content'>
        <h1>Professional Report</h1>
        <div class='page-break'></div>
        <h2>Section 2</h2>
    </div>";
var PDF = renderer.RenderHtmlAsPdf(html);

Dim renderer As New ChromePdfRenderer()
' Configure CSS media type
renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Print
' Set viewport for responsive designs
renderer.RenderingOptions.ViewPortWidth = 1024
' Configure margins
renderer.RenderingOptions.MarginTop = 10
renderer.RenderingOptions.MarginBottom = 10
renderer.RenderingOptions.MarginLeft = 10
renderer.RenderingOptions.MarginRight = 10
Dim HTML As String = "
    <style>
        @media print {
            .no-print { display: none; }
            body { font-size: 12pt; }
            .page-break { page-break-after: always; }
        }
        @page {
            size: A4;
            margin: 1cm;
        }
    </style>
    <div class='content'>
        <h1>Professional Report</h1>
        <div class='page-break'></div>
        <h2>Section 2</h2>
    </div>"
Dim PDF = renderer.RenderHtmlAsPdf(html)

var renderer = new ChromePdfRenderer();
// Add authentication cookie
renderer.RequestContext.Cookies.Add(new Cookie
{
    Name = "SessionId",
    Value = "your-session-token",
    Domain = "example.com"
});
// Or use basic authentication
renderer.ChromePdfRenderOptions.HttpLoginCredentials = new HttpLoginCredentials
{
    Username = "user",
    Password = "password"
};
var PDF = renderer.RenderUrlAsPdf("___PROTECTED_URL_80___");

Dim renderer As New ChromePdfRenderer()
' Add authentication cookie
renderer.RequestContext.Cookies.Add(New Cookie With {
    .Name = "SessionId",
    .Value = "your-session-token",
    .Domain = "example.com"
})
' Or use basic authentication
renderer.ChromePdfRenderOptions.HttpLoginCredentials = New HttpLoginCredentials With {
    .Username = "user",
    .Password = "password"
}
Dim PDF = renderer.RenderUrlAsPdf("___PROTECTED_URL_80___")