Iron Suite for .NET

10個 .NET 程式庫。一個完整的文件套件。

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比較

EO.Pdf vs IronPDF：技術比較指南

Curtis Chau

Updated: 2026年5月8日

當.NET開發者查看PDF生成程式庫時，EO.Pdf作為一個具有基於Chromium渲染功能的商業選擇而突顯出來。然而，其較大的部署佔用空間、從Internet Explorer遺產問題上進行遷移的問題，以及靜態的全域配置方式讓許多團隊考慮其他替代方案。 IronPDF提供了經過優化的Chromium實現，採用經過最大化優化的包裝方式、基於實例的、執行緒安全的配置以及真正的跨平台支援。

這份比較分析審查了兩個程式庫在技術相關方面的表現，以協助專業開發者和架構師為他們的.NET PDF需求做出明智決策。

理解EO.Pdf

EO.Pdf是一個商業PDF程式庫，每個開發者授權價格為$liteLicense，具有基於Chromium的渲染功能，用於高質量的PDF生成。該程式庫建立在一個自訂引擎上，從其原始的Internet Explorer渲染基礎轉換為基於Chromium的系統。

儘管有此更新，但此程式庫轉向Chromium的過程，由於其Internet Explorer時期的遺留問題，引入了相容性問題。它包含自己的Chromium引擎，導致部署佔用空間變大，這增加了Docker映像大小，減慢了CI/CD流程，以及提高了基礎設施成本。

另外，雖然EO.Pdf將自己宣傳為跨平台工具，但其性能和使用內容主要偏向於Windows，而Linux支援通常被描述為次要的。轉換器使用靜態HtmlToPdf.Options進行配置，這在多租戶網頁應用程式中造成執行緒安全性的擔憂。

了解IronPDF

IronPDF是一個為現代.NET環境設計的.NET PDF程式庫，採用優化的Chromium包裝方法，從而減少了部署佔用空間。該程式庫提供對所有平台的平等支援，而不是偏好Windows，使其適用於部署在多樣化環境中的應用程式。

IronPDF通過ChromePdfRenderer物件使用基於實例的配置，確保在並發場景下執行執行緒安全。每個渲染器實例維護自己的RenderingOptions，將配置與其他操作隔離。

架構和配置比較

這些.NET PDF程式庫的根本架構差異在於它們的配置方法和部署特徵。

方面	EO.Pdf	IronPDF
包大小	較大的部署佔用空間	優化的包裝
遺留問題	IE遷移包袱	乾淨、現代程式碼庫
平台支持	以Windows為主	真正的跨平台
配置	靜態/全域	基於實例，執行緒安全
價格	`$liteLicense`/開發者	有競爭力的定價
API設計	混合型(HtmlToPdf + ACM)	統一且一致
文件	有限	詳細的教程
現代.NET	.NET Standard	.NET 6/7/8/9+ 原生支援
Async 支援	有限	完整的async/await

配置模型代表了一個關鍵的區別。程式庫的靜態HtmlToPdf.Options影響所有轉換的全域設置，在多執行緒應用程式中建立競態條件。 IronPDF的基於實例的方法確保每個渲染器的隔離配置。

程式碼比較：常見的 PDF 操作

HTML 到 PDF 轉換

將HTML內容轉換為PDF展示了基礎API的差異。

EO.Pdf：

// NuGet: Install-Package EO.Pdf
using EO.Pdf;
using System;

class Program
{
    static void Main()
    {
        string html = "<html><body><h1>Hello World</h1><p>This is a PDF generated from HTML.</p></body></html>";
        
        HtmlToPdf.ConvertHtml(html, "output.pdf");
        
        Console.WriteLine("PDF created successfully!");
    }
}

// NuGet: Install-Package EO.Pdf
using EO.Pdf;
using System;

class Program
{
    static void Main()
    {
        string html = "<html><body><h1>Hello World</h1><p>This is a PDF generated from HTML.</p></body></html>";
        
        HtmlToPdf.ConvertHtml(html, "output.pdf");
        
        Console.WriteLine("PDF created successfully!");
    }
}

' NuGet: Install-Package EO.Pdf
Imports EO.Pdf
Imports System

Module Program
    Sub Main()
        Dim html As String = "<html><body><h1>Hello World</h1><p>This is a PDF generated from HTML.</p></body></html>"
        
        HtmlToPdf.ConvertHtml(html, "output.pdf")
        
        Console.WriteLine("PDF created successfully!")
    End Sub
End Module

' NuGet: Install-Package EO.Pdf
Imports EO.Pdf
Imports System

Module Program
    Sub Main()
        Dim html As String = "<html><body><h1>Hello World</h1><p>This is a PDF generated from HTML.</p></body></html>"
        
        HtmlToPdf.ConvertHtml(html, "output.pdf")
        
        Console.WriteLine("PDF created successfully!")
    End Sub
End Module

IronPDF：

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

class Program
{
    static void Main()
    {
        string html = "<html><body><h1>Hello World</h1><p>This is a PDF generated from HTML.</p></body></html>";
        
        var renderer = new ChromePdfRenderer();
        var pdf = renderer.RenderHtmlAsPdf(html);
        pdf.SaveAs("output.pdf");
        
        Console.WriteLine("PDF created successfully!");
    }
}

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

class Program
{
    static void Main()
    {
        string html = "<html><body><h1>Hello World</h1><p>This is a PDF generated from HTML.</p></body></html>";
        
        var renderer = new ChromePdfRenderer();
        var pdf = renderer.RenderHtmlAsPdf(html);
        pdf.SaveAs("output.pdf");
        
        Console.WriteLine("PDF created successfully!");
    }
}

' NuGet: Install-Package IronPdf
Imports IronPdf
Imports System

Module Program
    Sub Main()
        Dim html As String = "<html><body><h1>Hello World</h1><p>This is a PDF generated from HTML.</p></body></html>"

        Dim renderer As New ChromePdfRenderer()
        Dim pdf = renderer.RenderHtmlAsPdf(html)
        pdf.SaveAs("output.pdf")

        Console.WriteLine("PDF created successfully!")
    End Sub
End Module

' NuGet: Install-Package IronPdf
Imports IronPdf
Imports System

Module Program
    Sub Main()
        Dim html As String = "<html><body><h1>Hello World</h1><p>This is a PDF generated from HTML.</p></body></html>"

        Dim renderer As New ChromePdfRenderer()
        Dim pdf = renderer.RenderHtmlAsPdf(html)
        pdf.SaveAs("output.pdf")

        Console.WriteLine("PDF created successfully!")
    End Sub
End Module

該程式庫使用靜態HtmlToPdf.ConvertHtml()方法直接保存到文件路徑。 IronPDF使用兩步驟方法：SaveAs()之前進一步操作。這種兩步驟模式為後處理操作提供了更多的靈活性，例如合併、新增水印或應用安全設置。

想了解進階HTML渲染選項，請參閱HTML到PDF轉換指南。

URL到PDF轉換

將網頁作為PDF文件捕獲顯示了類似的API模式。

EO.Pdf：

// NuGet: Install-Package EO.Pdf
using EO.Pdf;
using System;

class Program
{
    static void Main()
    {
        string url = "https://www.example.com";
        
        HtmlToPdf.ConvertUrl(url, "webpage.pdf");
        
        Console.WriteLine("PDF from URL created successfully!");
    }
}

// NuGet: Install-Package EO.Pdf
using EO.Pdf;
using System;

class Program
{
    static void Main()
    {
        string url = "https://www.example.com";
        
        HtmlToPdf.ConvertUrl(url, "webpage.pdf");
        
        Console.WriteLine("PDF from URL created successfully!");
    }
}

' NuGet: Install-Package EO.Pdf
Imports EO.Pdf
Imports System

Module Program
    Sub Main()
        Dim url As String = "https://www.example.com"
        
        HtmlToPdf.ConvertUrl(url, "webpage.pdf")
        
        Console.WriteLine("PDF from URL created successfully!")
    End Sub
End Module

' NuGet: Install-Package EO.Pdf
Imports EO.Pdf
Imports System

Module Program
    Sub Main()
        Dim url As String = "https://www.example.com"
        
        HtmlToPdf.ConvertUrl(url, "webpage.pdf")
        
        Console.WriteLine("PDF from URL created successfully!")
    End Sub
End Module

IronPDF：

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

class Program
{
    static void Main()
    {
        string url = "https://www.example.com";
        
        var renderer = new ChromePdfRenderer();
        var pdf = renderer.RenderUrlAsPdf(url);
        pdf.SaveAs("webpage.pdf");
        
        Console.WriteLine("PDF from URL created successfully!");
    }
}

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

class Program
{
    static void Main()
    {
        string url = "https://www.example.com";
        
        var renderer = new ChromePdfRenderer();
        var pdf = renderer.RenderUrlAsPdf(url);
        pdf.SaveAs("webpage.pdf");
        
        Console.WriteLine("PDF from URL created successfully!");
    }
}

' NuGet: Install-Package IronPdf
Imports IronPdf
Imports System

Module Program
    Sub Main()
        Dim url As String = "https://www.example.com"

        Dim renderer As New ChromePdfRenderer()
        Dim pdf = renderer.RenderUrlAsPdf(url)
        pdf.SaveAs("webpage.pdf")

        Console.WriteLine("PDF from URL created successfully!")
    End Sub
End Module

' NuGet: Install-Package IronPdf
Imports IronPdf
Imports System

Module Program
    Sub Main()
        Dim url As String = "https://www.example.com"

        Dim renderer As New ChromePdfRenderer()
        Dim pdf = renderer.RenderUrlAsPdf(url)
        pdf.SaveAs("webpage.pdf")

        Console.WriteLine("PDF from URL created successfully!")
    End Sub
End Module

這兩個程式庫都提供URL到PDF的能力，EO.Pdf使用靜態RenderUrlAsPdf()。相同的執行緒安全性區別適用。

了解更多關於URL渲染的資訊，請參閱URL到PDF文件。

PDF合併操作

合併多個PDF文件顯示了不同的物件模型方法。

EO.Pdf：

// NuGet: Install-Package EO.Pdf
using EO.Pdf;
using System;

class Program
{
    static void Main()
    {
        PdfDocument doc1 = new PdfDocument("file1.pdf");
        PdfDocument doc2 = new PdfDocument("file2.pdf");
        
        PdfDocument mergedDoc = new PdfDocument();
        mergedDoc.Append(doc1);
        mergedDoc.Append(doc2);
        
        mergedDoc.Save("merged.pdf");
        
        Console.WriteLine("PDFs merged successfully!");
    }
}

// NuGet: Install-Package EO.Pdf
using EO.Pdf;
using System;

class Program
{
    static void Main()
    {
        PdfDocument doc1 = new PdfDocument("file1.pdf");
        PdfDocument doc2 = new PdfDocument("file2.pdf");
        
        PdfDocument mergedDoc = new PdfDocument();
        mergedDoc.Append(doc1);
        mergedDoc.Append(doc2);
        
        mergedDoc.Save("merged.pdf");
        
        Console.WriteLine("PDFs merged successfully!");
    }
}

' NuGet: Install-Package EO.Pdf
Imports EO.Pdf
Imports System

Module Program
    Sub Main()
        Dim doc1 As New PdfDocument("file1.pdf")
        Dim doc2 As New PdfDocument("file2.pdf")

        Dim mergedDoc As New PdfDocument()
        mergedDoc.Append(doc1)
        mergedDoc.Append(doc2)

        mergedDoc.Save("merged.pdf")

        Console.WriteLine("PDFs merged successfully!")
    End Sub
End Module

' NuGet: Install-Package EO.Pdf
Imports EO.Pdf
Imports System

Module Program
    Sub Main()
        Dim doc1 As New PdfDocument("file1.pdf")
        Dim doc2 As New PdfDocument("file2.pdf")

        Dim mergedDoc As New PdfDocument()
        mergedDoc.Append(doc1)
        mergedDoc.Append(doc2)

        mergedDoc.Save("merged.pdf")

        Console.WriteLine("PDFs merged successfully!")
    End Sub
End Module

IronPDF：

// NuGet: Install-Package IronPdf
using IronPdf;
using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        var pdf1 = PdfDocument.FromFile("file1.pdf");
        var pdf2 = PdfDocument.FromFile("file2.pdf");
        
        var merged = PdfDocument.Merge(new List<PdfDocument> { pdf1, pdf2 });
        merged.SaveAs("merged.pdf");
        
        Console.WriteLine("PDFs merged successfully!");
    }
}

// NuGet: Install-Package IronPdf
using IronPdf;
using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        var pdf1 = PdfDocument.FromFile("file1.pdf");
        var pdf2 = PdfDocument.FromFile("file2.pdf");
        
        var merged = PdfDocument.Merge(new List<PdfDocument> { pdf1, pdf2 });
        merged.SaveAs("merged.pdf");
        
        Console.WriteLine("PDFs merged successfully!");
    }
}

' NuGet: Install-Package IronPdf
Imports IronPdf
Imports System
Imports System.Collections.Generic

Module Program
    Sub Main()
        Dim pdf1 = PdfDocument.FromFile("file1.pdf")
        Dim pdf2 = PdfDocument.FromFile("file2.pdf")
        
        Dim merged = PdfDocument.Merge(New List(Of PdfDocument) From {pdf1, pdf2})
        merged.SaveAs("merged.pdf")
        
        Console.WriteLine("PDFs merged successfully!")
    End Sub
End Module

' NuGet: Install-Package IronPdf
Imports IronPdf
Imports System
Imports System.Collections.Generic

Module Program
    Sub Main()
        Dim pdf1 = PdfDocument.FromFile("file1.pdf")
        Dim pdf2 = PdfDocument.FromFile("file2.pdf")
        
        Dim merged = PdfDocument.Merge(New List(Of PdfDocument) From {pdf1, pdf2})
        merged.SaveAs("merged.pdf")
        
        Console.WriteLine("PDFs merged successfully!")
    End Sub
End Module

這個解決方案通過構造函式載入文件(Append()將文件新增到一個空的容器中。 IronPDF使用靜態工廠方法(PdfDocument.Merge()方法，該方法接受集合並返回合併結果。

在PDF合併文件中探索更多合併操作。

自訂頁面設置

配置頁面大小和邊距顯示了配置模的區別。

EO.Pdf：

// NuGet: Install-Package EO.Pdf
using EO.Pdf;
using System;

class Program
{
    static void Main()
    {
        HtmlToPdfOptions options = new HtmlToPdfOptions();
        options.PageSize = PdfPageSizes.A4;
        options.OutputArea = new RectangleF(0.5f, 0.5f, 7.5f, 10.5f);
        
        HtmlToPdf.ConvertUrl("file:///C:/input.html", "output.pdf", options);
        Console.WriteLine("PDF with custom settings created.");
    }
}

// NuGet: Install-Package EO.Pdf
using EO.Pdf;
using System;

class Program
{
    static void Main()
    {
        HtmlToPdfOptions options = new HtmlToPdfOptions();
        options.PageSize = PdfPageSizes.A4;
        options.OutputArea = new RectangleF(0.5f, 0.5f, 7.5f, 10.5f);
        
        HtmlToPdf.ConvertUrl("file:///C:/input.html", "output.pdf", options);
        Console.WriteLine("PDF with custom settings created.");
    }
}

' NuGet: Install-Package EO.Pdf
Imports EO.Pdf
Imports System

Module Program
    Sub Main()
        Dim options As New HtmlToPdfOptions()
        options.PageSize = PdfPageSizes.A4
        options.OutputArea = New RectangleF(0.5F, 0.5F, 7.5F, 10.5F)
        
        HtmlToPdf.ConvertUrl("file:///C:/input.html", "output.pdf", options)
        Console.WriteLine("PDF with custom settings created.")
    End Sub
End Module

' NuGet: Install-Package EO.Pdf
Imports EO.Pdf
Imports System

Module Program
    Sub Main()
        Dim options As New HtmlToPdfOptions()
        options.PageSize = PdfPageSizes.A4
        options.OutputArea = New RectangleF(0.5F, 0.5F, 7.5F, 10.5F)
        
        HtmlToPdf.ConvertUrl("file:///C:/input.html", "output.pdf", options)
        Console.WriteLine("PDF with custom settings created.")
    End Sub
End Module

IronPDF：

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

class Program
{
    static void Main()
    {
        var renderer = new ChromePdfRenderer();
        renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
        renderer.RenderingOptions.MarginTop = 20;
        renderer.RenderingOptions.MarginBottom = 20;
        renderer.RenderingOptions.MarginLeft = 20;
        renderer.RenderingOptions.MarginRight = 20;
        
        var pdf = renderer.RenderHtmlFileAsPdf("C:/input.html");
        pdf.SaveAs("output.pdf");
        Console.WriteLine("PDF with custom settings created.");
    }
}

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

class Program
{
    static void Main()
    {
        var renderer = new ChromePdfRenderer();
        renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
        renderer.RenderingOptions.MarginTop = 20;
        renderer.RenderingOptions.MarginBottom = 20;
        renderer.RenderingOptions.MarginLeft = 20;
        renderer.RenderingOptions.MarginRight = 20;
        
        var pdf = renderer.RenderHtmlFileAsPdf("C:/input.html");
        pdf.SaveAs("output.pdf");
        Console.WriteLine("PDF with custom settings created.");
    }
}

' NuGet: Install-Package IronPdf
Imports IronPdf
Imports IronPdf.Rendering
Imports System

Module Program
    Sub Main()
        Dim renderer As New ChromePdfRenderer()
        renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
        renderer.RenderingOptions.MarginTop = 20
        renderer.RenderingOptions.MarginBottom = 20
        renderer.RenderingOptions.MarginLeft = 20
        renderer.RenderingOptions.MarginRight = 20

        Dim pdf = renderer.RenderHtmlFileAsPdf("C:/input.html")
        pdf.SaveAs("output.pdf")
        Console.WriteLine("PDF with custom settings created.")
    End Sub
End Module

' NuGet: Install-Package IronPdf
Imports IronPdf
Imports IronPdf.Rendering
Imports System

Module Program
    Sub Main()
        Dim renderer As New ChromePdfRenderer()
        renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
        renderer.RenderingOptions.MarginTop = 20
        renderer.RenderingOptions.MarginBottom = 20
        renderer.RenderingOptions.MarginLeft = 20
        renderer.RenderingOptions.MarginRight = 20

        Dim pdf = renderer.RenderHtmlFileAsPdf("C:/input.html")
        pdf.SaveAs("output.pdf")
        Console.WriteLine("PDF with custom settings created.")
    End Sub
End Module

轉換器使用RectangleF。 IronPDF在MarginTop, MarginBottom, MarginLeft, MarginRight)。單位差異需要轉換：inches × 25.4 = millimeters。

方法映射參考

對於評估EO.Pdf遷移或比較功能的開發者，這個映射顯示了等價的操作：

核心操作

EO.Pdf	IronPDF
`HtmlToPdf.ConvertHtml(html, path)`	`SaveAs()`
`HtmlToPdf.ConvertUrl(url, path)`	`SaveAs()`
`HtmlToPdf.Options.PageSize`	`renderer.RenderingOptions.PaperSize`
`HtmlToPdf.Options.OutputArea`	`MarginTop/Bottom/Left/Right`
`new PdfDocument(path)`	`PdfDocument.FromFile(path)`
`doc.Append(other)`	`PdfDocument.Merge(doc1, doc2)`
`doc.Save(path)`	`pdf.SaveAs(path)`

配置映射

EO.Pdf選項	IronPDFRenderingOptions
`Options.PageSize = PdfPageSizes.A4`	`PaperSize = PdfPaperSize.A4`
`Options.PageSize = PdfPageSizes.Letter`	`PaperSize = PdfPaperSize.Letter`
`Options.OutputArea`(RectangleF)	`MarginTop`, `MarginBottom`, 等等。
`Options.BaseUrl`	`BaseUrl`

類映射

EO.Pdf類	IronPDF等效
`HtmlToPdf`	`ChromePdfRenderer`
`PdfDocument`	`PdfDocument`
`HtmlToPdfOptions`	`ChromePdfRenderOptions`
`AcmRender`	無需
`AcmText`	HTML `<span>`, `<p>`
`AcmBlock`	HTML `<div>`

功能比較總結

功能	EO.Pdf	IronPDF
HTML到PDF	是	是
URL到PDF	是	是
PDF合併	是	是
頁面操作	是	是
頁眉/頁腳	是	是（基於HTML）
安全/加密	是	是
表單字段	是	是
水印	是	是
ACM渲染	是	HTML/CSS(無ACM)
執行緒安全配置	是的(每執行緒隔離)	是的(實例)
跨平台	有限	支持

執行緒安全問題

EO.Pdf的靜態配置在多執行緒應用程式中建立了一個根本問題：

// EO.Pdf - DANGER: Static options affect ALL threads!
HtmlToPdf.Options.PageSize = PdfPageSizes.A4;
HtmlToPdf.Options.OutputArea = new RectangleF(0.5f, 0.5f, 7.5f, 10.5f);
HtmlToPdf.ConvertHtml(html, "output.pdf");

// EO.Pdf - DANGER: Static options affect ALL threads!
HtmlToPdf.Options.PageSize = PdfPageSizes.A4;
HtmlToPdf.Options.OutputArea = new RectangleF(0.5f, 0.5f, 7.5f, 10.5f);
HtmlToPdf.ConvertHtml(html, "output.pdf");

' EO.Pdf - DANGER: Static options affect ALL threads!
HtmlToPdf.Options.PageSize = PdfPageSizes.A4
HtmlToPdf.Options.OutputArea = New RectangleF(0.5F, 0.5F, 7.5F, 10.5F)
HtmlToPdf.ConvertHtml(html, "output.pdf")

' EO.Pdf - DANGER: Static options affect ALL threads!
HtmlToPdf.Options.PageSize = PdfPageSizes.A4
HtmlToPdf.Options.OutputArea = New RectangleF(0.5F, 0.5F, 7.5F, 10.5F)
HtmlToPdf.ConvertHtml(html, "output.pdf")

在處理多個並發請求的網頁應用程式中，一個請求的配置會影響所有其他請求。這會創造競態條件，導致PDF可能使用意外的設置生成。

IronPDF基於實例的方法消除了這個問題：

//IronPDF- Thread-safe, isolated options per renderer instance
var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
renderer.RenderingOptions.MarginTop = 12.7;
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("output.pdf");

//IronPDF- Thread-safe, isolated options per renderer instance
var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
renderer.RenderingOptions.MarginTop = 12.7;
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("output.pdf");

'IronPDF- Thread-safe, isolated options per renderer instance
Dim renderer As New ChromePdfRenderer()
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
renderer.RenderingOptions.MarginTop = 12.7
Dim pdf = renderer.RenderHtmlAsPdf(html)
pdf.SaveAs("output.pdf")

'IronPDF- Thread-safe, isolated options per renderer instance
Dim renderer As New ChromePdfRenderer()
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
renderer.RenderingOptions.MarginTop = 12.7
Dim pdf = renderer.RenderHtmlAsPdf(html)
pdf.SaveAs("output.pdf")

每個ChromePdfRenderer實例維持其自己的配置，確保在並發場景中的隔離。