如何用 C# 从 DinkToPdf 迁移到 IronPDF

# Find allDinkToPdfusages in your codebase
grep -r "using DinkToPdf" --include="*.cs" .
grep -r "SynchronizedConverter\|HtmlToPdfDocument\|ObjectSettings" --include="*.cs" .

# Find NuGet package references
grep -r "DinkToPdf" --include="*.csproj" .

# Find wkhtmltopdf binaries
find . -name "libwkhtmltox*"

# Remove DinkToPdf
dotnet remove package DinkToPdf

# Install IronPDF
dotnet add package IronPdf

// Remove these
using DinkToPdf;
using DinkToPdf.Contracts;

// Add this
using IronPdf;

Imports IronPdf

// Add at application startup (Program.cs or Global.asax)
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";

' Add at application startup (Program.vb or Global.asax)
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"

// NuGet: Install-Package DinkToPdf
using DinkToPdf;
using DinkToPdf.Contracts;
using System.IO;

class Program
{
    static void Main()
    {
        var converter = new SynchronizedConverter(new PdfTools());
        var doc = new HtmlToPdfDocument()
        {
            GlobalSettings = {
                ColorMode = ColorMode.Color,
                Orientation = Orientation.Portrait,
                PaperSize = PaperKind.A4,
            },
            Objects = {
                new ObjectSettings() {
                    HtmlContent = "<h1>Hello World</h1><p>This is a PDF from HTML.</p>",
                    WebSettings = { DefaultEncoding = "utf-8" }
                }
            }
        };
        byte[] pdf = converter.Convert(doc);
        File.WriteAllBytes("output.pdf", pdf);
    }
}

Imports DinkToPdf
Imports DinkToPdf.Contracts
Imports System.IO

Module Program
    Sub Main()
        Dim converter = New SynchronizedConverter(New PdfTools())
        Dim doc = New HtmlToPdfDocument() With {
            .GlobalSettings = New GlobalSettings() With {
                .ColorMode = ColorMode.Color,
                .Orientation = Orientation.Portrait,
                .PaperSize = PaperKind.A4
            },
            .Objects = {
                New ObjectSettings() With {
                    .HtmlContent = "<h1>Hello World</h1><p>This is a PDF from HTML.</p>",
                    .WebSettings = New WebSettings() With {
                        .DefaultEncoding = "utf-8"
                    }
                }
            }
        }
        Dim pdf As Byte() = converter.Convert(doc)
        File.WriteAllBytes("output.pdf", pdf)
    End Sub
End Module

// NuGet: Install-Package IronPdf
using IronPdf;
using System;

class Program
{
    static void Main()
    {
        var renderer = new ChromePdfRenderer();
        var pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1><p>This is a PDF from HTML.</p>");
        pdf.SaveAs("output.pdf");
    }
}

Imports IronPdf
Imports System

Class Program
    Shared Sub Main()
        Dim renderer = New ChromePdfRenderer()
        Dim pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1><p>This is a PDF from HTML.</p>")
        pdf.SaveAs("output.pdf")
    End Sub
End Class

// NuGet: Install-Package DinkToPdf
using DinkToPdf;
using DinkToPdf.Contracts;
using System.IO;

class Program
{
    static void Main()
    {
        var converter = new SynchronizedConverter(new PdfTools());
        var doc = new HtmlToPdfDocument()
        {
            GlobalSettings = {
                ColorMode = ColorMode.Color,
                Orientation = Orientation.Portrait,
                PaperSize = PaperKind.A4,
            },
            Objects = {
                new ObjectSettings() {
                    Page = "https://www.example.com",
                }
            }
        };
        byte[] pdf = converter.Convert(doc);
        File.WriteAllBytes("webpage.pdf", pdf);
    }
}

Imports DinkToPdf
Imports DinkToPdf.Contracts
Imports System.IO

Module Program
    Sub Main()
        Dim converter = New SynchronizedConverter(New PdfTools())
        Dim doc = New HtmlToPdfDocument() With {
            .GlobalSettings = New GlobalSettings() With {
                .ColorMode = ColorMode.Color,
                .Orientation = Orientation.Portrait,
                .PaperSize = PaperKind.A4
            },
            .Objects = New List(Of ObjectSettings) From {
                New ObjectSettings() With {
                    .Page = "https://www.example.com"
                }
            }
        }
        Dim pdf As Byte() = converter.Convert(doc)
        File.WriteAllBytes("webpage.pdf", pdf)
    End Sub
End Module

// NuGet: Install-Package IronPdf
using IronPdf;
using System;

class Program
{
    static void Main()
    {
        var renderer = new ChromePdfRenderer();
        var pdf = renderer.RenderUrlAsPdf("https://www.example.com");
        pdf.SaveAs("webpage.pdf");
    }
}

Imports IronPdf
Imports System

Class Program
    Shared Sub Main()
        Dim renderer = New ChromePdfRenderer()
        Dim pdf = renderer.RenderUrlAsPdf("https://www.example.com")
        pdf.SaveAs("webpage.pdf")
    End Sub
End Class

// NuGet: Install-Package DinkToPdf
using DinkToPdf;
using DinkToPdf.Contracts;
using System.IO;

class Program
{
    static void Main()
    {
        var converter = new SynchronizedConverter(new PdfTools());
        var doc = new HtmlToPdfDocument()
        {
            GlobalSettings = {
                ColorMode = ColorMode.Color,
                Orientation = Orientation.Landscape,
                PaperSize = PaperKind.A4,
                Margins = new MarginSettings { Top = 10, Bottom = 10, Left = 15, Right = 15 }
            },
            Objects = {
                new ObjectSettings() {
                    HtmlContent = "<h1>Custom PDF</h1><p>Landscape orientation with custom margins.</p>",
                    WebSettings = { DefaultEncoding = "utf-8" }
                }
            }
        };
        byte[] pdf = converter.Convert(doc);
        File.WriteAllBytes("custom.pdf", pdf);
    }
}

Imports DinkToPdf
Imports DinkToPdf.Contracts
Imports System.IO

Module Program
    Sub Main()
        Dim converter = New SynchronizedConverter(New PdfTools())
        Dim doc = New HtmlToPdfDocument() With {
            .GlobalSettings = New GlobalSettings() With {
                .ColorMode = ColorMode.Color,
                .Orientation = Orientation.Landscape,
                .PaperSize = PaperKind.A4,
                .Margins = New MarginSettings() With {
                    .Top = 10,
                    .Bottom = 10,
                    .Left = 15,
                    .Right = 15
                }
            },
            .Objects = {
                New ObjectSettings() With {
                    .HtmlContent = "<h1>Custom PDF</h1><p>Landscape orientation with custom margins.</p>",
                    .WebSettings = New WebSettings() With {
                        .DefaultEncoding = "utf-8"
                    }
                }
            }
        }
        Dim pdf As Byte() = converter.Convert(doc)
        File.WriteAllBytes("custom.pdf", pdf)
    End Sub
End Module

// NuGet: Install-Package IronPdf
using IronPdf;
using IronPdf.Rendering;
using System;

class Program
{
    static void Main()
    {
        var renderer = new ChromePdfRenderer();
        renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Landscape;
        renderer.RenderingOptions.MarginTop = 10;
        renderer.RenderingOptions.MarginBottom = 10;
        renderer.RenderingOptions.MarginLeft = 15;
        renderer.RenderingOptions.MarginRight = 15;

        var pdf = renderer.RenderHtmlAsPdf("<h1>Custom PDF</h1><p>Landscape orientation with custom margins.</p>");
        pdf.SaveAs("custom.pdf");
    }
}

Imports IronPdf
Imports IronPdf.Rendering
Imports System

Module Program
    Sub Main()
        Dim renderer As New ChromePdfRenderer()
        renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Landscape
        renderer.RenderingOptions.MarginTop = 10
        renderer.RenderingOptions.MarginBottom = 10
        renderer.RenderingOptions.MarginLeft = 15
        renderer.RenderingOptions.MarginRight = 15

        Dim pdf = renderer.RenderHtmlAsPdf("<h1>Custom PDF</h1><p>Landscape orientation with custom margins.</p>")
        pdf.SaveAs("custom.pdf")
    End Sub
End Module

# Delete native binaries
rm libwkhtmltox.* 2>/dev/null

//DinkToPdf- MUST be singleton
services.AddSingleton(typeof(IConverter), new SynchronizedConverter(new PdfTools()));

//IronPDF- any lifetime works
services.AddScoped<ChromePdfRenderer>();
// Or just create inline:
var renderer = new ChromePdfRenderer();

' DinkToPdf- MUST be singleton
services.AddSingleton(GetType(IConverter), New SynchronizedConverter(New PdfTools()))

' IronPDF- any lifetime works
services.AddScoped(Of ChromePdfRenderer)()
' Or just create inline:
Dim renderer As New ChromePdfRenderer()

//DinkToPdfreturns byte[]
byte[] pdf = converter.Convert(doc);
File.WriteAllBytes("output.pdf", pdf);
return File(pdf, "application/pdf");

//IronPDFreturns PdfDocument
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("output.pdf");
return File(pdf.BinaryData, "application/pdf");

' DinkToPdf returns byte()
Dim pdf As Byte() = converter.Convert(doc)
File.WriteAllBytes("output.pdf", pdf)
Return File(pdf, "application/pdf")

' IronPDF returns PdfDocument
Dim pdfDocument = renderer.RenderHtmlAsPdf(html)
pdfDocument.SaveAs("output.pdf")
Return File(pdfDocument.BinaryData, "application/pdf")

//DinkToPdf- doesn't work (wkhtmltopdf uses 2015 WebKit)
var html = "<div style='display: flex;'>...</div>";  // Broken!

//IronPDF- full support (modern Chromium)
var html = @"
    <div style='display: flex; justify-content: space-between;'>
        <div>Left</div>
        <div>Right</div>
    </div>";
var pdf = renderer.RenderHtmlAsPdf(html);  // Works!

' DinkToPdf- doesn't work (wkhtmltopdf uses 2015 WebKit)
Dim html As String = "<div style='display: flex;'>...</div>"  ' Broken!

' IronPDF- full support (modern Chromium)
Dim html As String = "
    <div style='display: flex; justify-content: space-between;'>
        <div>Left</div>
        <div>Right</div>
    </div>"
Dim pdf = renderer.RenderHtmlAsPdf(html)  ' Works!