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using IronPDF 在 PDFs 中渲染 WebGL 內容

已更新:2026年7月19日

從Microsoft Playwright for .NET遷移到IronPDF，將您的PDF生成工作流從瀏覽器自動化測試框架轉移到專用的PDF程式庫。本指南提供了一個逐步遷移路徑，移除異步瀏覽器生命周期管理和單獨的playwright install瀏覽器二進制下載步驟。

為什麼從Playwright遷移到IronPDF

了解.NET的Playwright

Playwright for .NET（NuGet Microsoft.Playwright，MIT授權）是Microsoft的瀏覽器自動化框架，主要設計用於跨Chromium、Firefox和WebKit的端到端測試。其典型工作負載是互動性的：點擊按鈕、填寫表單、攔截網路請求、截圖及驗證跨瀏覽器相容性。

在Playwright中生成PDF是一個透過Page.PdfAsync()暴露的次要功能，僅支持Chromium — Firefox和WebKit不實現PDF輸出。輸出使用瀏覽器的列印至PDF路徑（相當於Ctrl+P），這對佈局、背景和分頁有影響：

測試先行架構，未優化於無頭文件生成
瀏覽器二進制（Chromium及選擇性地Firefox和WebKit）必須透過playwright install單獨安裝
為自動化測試工作流程設計的異步API
無內建PDF/A、PDF/UA、數位簽名、浮水印、合併或安全功能

使用Playwright生成PDF時的考量

Playwright是為端到端測試設計的，而不是文件生成。當將其重新用於PDF時，有幾個實際的影響：

透過playwright install獲取瀏覽器二進制。 Playwright的預設配置會下載瀏覽器二進制（Chromium、Firefox、WebKit），這可能是對於具有嚴格資源或部署限制的環境的考量。
異步瀏覽器/上下文/頁面模型。 開發人員需要熟悉瀏覽器上下文和頁生命周期管理，包括釋放。
測試先行架構，未優化於高容量文件生成。
列印至PDF語義相當於Ctrl+P瀏覽器列印。佈局可能重新排列，背景可能預設被省略，且輸出會分頁以供列印。
無PDF/A或PDF/UA輸出。 Playwright不生成符合PDF/A（歸檔）或PDF/UA（可存取性）標準的文件。對於第508條款、EU可存取性指令或長期歸檔需求，通常需要專用的PDF程式庫。
每次渲染的瀏覽器資源使用當每個PDF啟動瀏覽器上下文和頁面時。

配置介面

Playwright暴露了一個面向測試自動化的配置介面。當僅用於PDF生成時，最相關的部分是：

瀏覽器安裝步驟：

# Separate installation step before first use
playwright install            # Downloads browser binaries (Chromium, Firefox, WebKit)
# Or for a single browser:
playwright install chromium   # Chromium-only (the only engine that supports PDF output)

# Separate installation step before first use
playwright install            # Downloads browser binaries (Chromium, Firefox, WebKit)
# Or for a single browser:
playwright install chromium   # Chromium-only (the only engine that supports PDF output)

SHELL

瀏覽器啟動配置：

// Testing-focused launch options for PDF generation
using var playwright = await Playwright.CreateAsync();
var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions
{
    Headless = true,  // Required for server environments
    Args = new[] { "--disable-gpu", "--no-sandbox" } // Linux/Docker configs
});

// Testing-focused launch options for PDF generation
using var playwright = await Playwright.CreateAsync();
var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions
{
    Headless = true,  // Required for server environments
    Args = new[] { "--disable-gpu", "--no-sandbox" } // Linux/Docker configs
});

' Testing-focused launch options for PDF generation
Using playwright = Await Playwright.CreateAsync()
    Dim browser = Await playwright.Chromium.LaunchAsync(New BrowserTypeLaunchOptions With {
        .Headless = True,  ' Required for server environments
        .Args = New String() { "--disable-gpu", "--no-sandbox" } ' Linux/Docker configs
    })
End Using

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測試特定配置選項：

Headless：必須為生產環境配置無頭模式（預設為測試中的有頭模式）
SlowMo：測試定時延遲（對PDF生成無關）
Devtools：測試工具配置（文件不需要）
ExecutablePath：針對測試環境的自定義瀏覽器路徑
Proxy：針對測試的網路攔截（不必要的開銷）
DownloadsPath：測試工件管理
TracesDir：測試執行跟踪

瀏覽器上下文管理：

// Complex context lifecycle from testing paradigm
var context = await browser.NewContextAsync(new BrowserNewContextOptions
{
    ViewportSize = new ViewportSize { Width = 1920, Height = 1080 },
    UserAgent = "custom-user-agent",
    Locale = "en-US",
    TimezoneId = "America/New_York"
});
var page = await context.NewPageAsync();
// ... generate PDF ...
await context.CloseAsync();  // Manual cleanup required
await browser.CloseAsync();  // Manual cleanup required

// Complex context lifecycle from testing paradigm
var context = await browser.NewContextAsync(new BrowserNewContextOptions
{
    ViewportSize = new ViewportSize { Width = 1920, Height = 1080 },
    UserAgent = "custom-user-agent",
    Locale = "en-US",
    TimezoneId = "America/New_York"
});
var page = await context.NewPageAsync();
// ... generate PDF ...
await context.CloseAsync();  // Manual cleanup required
await browser.CloseAsync();  // Manual cleanup required

' Complex context lifecycle from testing paradigm
Dim context = Await browser.NewContextAsync(New BrowserNewContextOptions With {
    .ViewportSize = New ViewportSize With {.Width = 1920, .Height = 1080},
    .UserAgent = "custom-user-agent",
    .Locale = "en-US",
    .TimezoneId = "America/New_York"
})
Dim page = Await context.NewPageAsync()
' ... generate PDF ...
Await context.CloseAsync()  ' Manual cleanup required
Await browser.CloseAsync()  ' Manual cleanup required

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多瀏覽器介面：

// Playwright supports launching multiple engines
await playwright.Chromium.LaunchAsync();  // For Chromium-based testing (and PDF output)
await playwright.Firefox.LaunchAsync();   // For Firefox testing
await playwright.Webkit.LaunchAsync();    // For WebKit/Safari testing
// Note: Page.PdfAsync() is implemented on Chromium only.

// Playwright supports launching multiple engines
await playwright.Chromium.LaunchAsync();  // For Chromium-based testing (and PDF output)
await playwright.Firefox.LaunchAsync();   // For Firefox testing
await playwright.Webkit.LaunchAsync();    // For WebKit/Safari testing
// Note: Page.PdfAsync() is implemented on Chromium only.

Imports System.Threading.Tasks

' Playwright supports launching multiple engines
Await playwright.Chromium.LaunchAsync()  ' For Chromium-based testing (and PDF output)
Await playwright.Firefox.LaunchAsync()   ' For Firefox testing
Await playwright.Webkit.LaunchAsync()    ' For WebKit/Safari testing
' Note: Page.PdfAsync() is implemented on Chromium only.

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IronPDF：單一捆綁渲染器

// No separate browser-binary install or context management
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("output.pdf");

// No separate browser-binary install or context management
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("output.pdf");

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

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IronPDF將其渲染引擎隨NuGet包一起提供，因此沒有單獨的playwright install步驟以及不需要管理瀏覽器/上下文/頁面生命周期。

Playwright與IronPDF性能比較

指標	Playwright	IronPDF
主要目的	E2E瀏覽器自動化框架	PDF文件生成
設計哲學	測試先行；PDF是次要功能	專用的PDF程式庫
NuGet套件	`Microsoft.Playwright` (MIT)	`IronPdf`（商業）
瀏覽器二進制步驟	單獨的`playwright install`下載	捆綁在NuGet包中
支持PDF的引擎	僅Chromium（Firefox / WebKit不實現`Page.PdfAsync()`）	單一捆綁的基於Chromium的渲染器
首次渲染（冷啟動）	4.5秒	2.8秒
後續渲染	3.8-4.1秒	0.8-1.2秒
每次轉換的記憶體	280-420MB	80-120MB
API風格	異步瀏覽器/上下文/頁面生命周期	同步或異步； renderer-based
初始化	`CreateAsync()` + `LaunchAsync()` + `NewPageAsync()`	`new ChromePdfRenderer()`
PDF/A支持	不可用	支援
PDF/UA可存取性	不可用	支援
數位簽名	不可用	支援
PDF編輯	不可用	合併、拆分、加蓋、編輯
支持模型	社區支持	商業與SLA

IronPDF專為PDF生成而構建，具有文件為中心的API介面。它使用單一捆綁的基於Chromium的渲染引擎，並支持同步和異步操作，這使得當PDF輸出而不是瀏覽器互動是目標時，開發者有一個更簡單的思維模式。

底線

Playwright在主要工作負載是瀏覽器自動化或跨瀏覽器測試時非常合適，而PDF輸出則是偶爾的次要任務。 IronPDF更適合當PDF生成是主要工作負載時：不需要單獨的瀏覽器二進制安裝步驟，不需要管理瀏覽器/上下文/頁面生命周期，且文件功能如PDF/A、數位簽名、安全性和合併都可以現成使用。

開始之前

前提條件

.NET環境：.NET Framework 4.6.2+ 或.NET Core 3.1+ / .NET 5/6/7/8/9+
NuGet存取： 有能力安裝NuGet套件
IronPDF授權： 從ironpdf.com獲取您的授權金鑰

NuGet包變更

# Remove Playwright
dotnet remove package Microsoft.Playwright

# Remove the downloaded browser binaries
# Delete the .playwright folder in your project (and any cached binaries
# under your user profile, e.g. %USERPROFILE%\.cache\ms-playwright on Windows)

# Add IronPDF
dotnet add package IronPdf

# Remove Playwright
dotnet remove package Microsoft.Playwright

# Remove the downloaded browser binaries
# Delete the .playwright folder in your project (and any cached binaries
# under your user profile, e.g. %USERPROFILE%\.cache\ms-playwright on Windows)

# Add IronPDF
dotnet add package IronPdf

SHELL

IronPDF無需playwright install - 渲染引擎會自動捆綁。

授權配置

// Add at application startup
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";

// Add at application startup
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";

' Add at application startup
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"

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完整API參考

名稱空間變更

// Before: Playwright
using Microsoft.Playwright;
using System.Threading.Tasks;

// After: IronPDF
using IronPdf;
using IronPdf.Rendering;

// Before: Playwright
using Microsoft.Playwright;
using System.Threading.Tasks;

// After: IronPDF
using IronPdf;
using IronPdf.Rendering;

' Before: Playwright
Imports Microsoft.Playwright
Imports System.Threading.Tasks

' After: IronPDF
Imports IronPdf
Imports IronPdf.Rendering

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核心API對應

Playwright API	IronPDFAPI
`Playwright.CreateAsync()`	`new ChromePdfRenderer()`
`playwright.Chromium.LaunchAsync()`	不需要
`browser.NewPageAsync()`	不需要
`page.GotoAsync(url)`	`renderer.RenderUrlAsPdf(url)`
`page.SetContentAsync(html)` + `page.PdfAsync()`	`renderer.RenderHtmlAsPdf(html)`
`page.CloseAsync()`	不需要
`browser.CloseAsync()`	不需要
`PagePdfOptions.Format`	`RenderingOptions.PaperSize`
`PagePdfOptions.Margin`	`RenderingOptions.MarginTop/Bottom/Left/Right`
`PagePdfOptions.DisplayHeaderFooter`	`TextFooter`
`PagePdfOptions.HeaderTemplate`	`RenderingOptions.HtmlHeader`
`PagePdfOptions.FooterTemplate`	`RenderingOptions.HtmlFooter`
`<span class='pageNumber'>`	`{page}`

程式碼遷移範例

範例1：HTML字串轉PDF

之前（Playwright）：

// NuGet: Install-Package Microsoft.Playwright
using Microsoft.Playwright;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        var playwright = await Playwright.CreateAsync();
        var browser = await playwright.Chromium.LaunchAsync();
        var page = await browser.NewPageAsync();

        string html = "<h1>Hello World</h1><p>This is a test PDF.</p>";
        await page.SetContentAsync(html);
        await page.PdfAsync(new PagePdfOptions { Path = "output.pdf" });

        await browser.CloseAsync();
    }
}

// NuGet: Install-Package Microsoft.Playwright
using Microsoft.Playwright;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        var playwright = await Playwright.CreateAsync();
        var browser = await playwright.Chromium.LaunchAsync();
        var page = await browser.NewPageAsync();

        string html = "<h1>Hello World</h1><p>This is a test PDF.</p>";
        await page.SetContentAsync(html);
        await page.PdfAsync(new PagePdfOptions { Path = "output.pdf" });

        await browser.CloseAsync();
    }
}

Imports Microsoft.Playwright
Imports System.Threading.Tasks

Module Program
    Async Function Main(args As String()) As Task
        Dim playwright = Await Playwright.CreateAsync()
        Dim browser = Await playwright.Chromium.LaunchAsync()
        Dim page = Await browser.NewPageAsync()

        Dim html As String = "<h1>Hello World</h1><p>This is a test PDF.</p>"
        Await page.SetContentAsync(html)
        Await page.PdfAsync(New PagePdfOptions With {.Path = "output.pdf"})

        Await browser.CloseAsync()
    End Function
End Module

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之後（IronPDF）：

// NuGet: Install-Package IronPdf
using IronPdf;

class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();

        string html = "<h1>Hello World</h1><p>This is a test PDF.</p>";
        var pdf = renderer.RenderHtmlAsPdf(html);
        pdf.SaveAs("output.pdf");
    }
}

// NuGet: Install-Package IronPdf
using IronPdf;

class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();

        string html = "<h1>Hello World</h1><p>This is a test PDF.</p>";
        var pdf = renderer.RenderHtmlAsPdf(html);
        pdf.SaveAs("output.pdf");
    }
}

Imports IronPdf

Class Program
    Shared Sub Main(ByVal args As String())
        Dim renderer = New ChromePdfRenderer()

        Dim html As String = "<h1>Hello World</h1><p>This is a test PDF.</p>"
        Dim pdf = renderer.RenderHtmlAsPdf(html)
        pdf.SaveAs("output.pdf")
    End Sub
End Class

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此範例說明基本的架構差異。 Playwright需要五個異步操作：CloseAsync()進行明確的瀏覽器清理。

IronPDF消除了所有這些複雜性：建立SaveAs()。無異步模式，無瀏覽器生命周期，無清理程式碼。 IronPDF的方法提供了更清晰的語法和與現代.NET應用程式的更好整合。查看更多HTML到PDF文件以獲得完整的範例。

範例2：URL轉PDF轉換

之前（Playwright）：

// NuGet: Install-Package Microsoft.Playwright
using Microsoft.Playwright;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        var playwright = await Playwright.CreateAsync();
        var browser = await playwright.Chromium.LaunchAsync();
        var page = await browser.NewPageAsync();

        await page.GotoAsync("https://www.example.com");
        await page.PdfAsync(new PagePdfOptions 
        { 
            Path = "webpage.pdf",
            Format = "A4"
        });

        await browser.CloseAsync();
    }
}

// NuGet: Install-Package Microsoft.Playwright
using Microsoft.Playwright;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        var playwright = await Playwright.CreateAsync();
        var browser = await playwright.Chromium.LaunchAsync();
        var page = await browser.NewPageAsync();

        await page.GotoAsync("https://www.example.com");
        await page.PdfAsync(new PagePdfOptions 
        { 
            Path = "webpage.pdf",
            Format = "A4"
        });

        await browser.CloseAsync();
    }
}

Imports Microsoft.Playwright
Imports System.Threading.Tasks

Module Program
    Async Function Main(args As String()) As Task
        Dim playwright = Await Playwright.CreateAsync()
        Dim browser = Await playwright.Chromium.LaunchAsync()
        Dim page = Await browser.NewPageAsync()

        Await page.GotoAsync("https://www.example.com")
        Await page.PdfAsync(New PagePdfOptions With {
            .Path = "webpage.pdf",
            .Format = "A4"
        })

        Await browser.CloseAsync()
    End Function
End Module

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之後（IronPDF）：

// NuGet: Install-Package IronPdf
using IronPdf;

class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();

        var pdf = renderer.RenderUrlAsPdf("https://www.example.com");
        pdf.SaveAs("webpage.pdf");
    }
}

// NuGet: Install-Package IronPdf
using IronPdf;

class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();

        var pdf = renderer.RenderUrlAsPdf("https://www.example.com");
        pdf.SaveAs("webpage.pdf");
    }
}

Imports IronPdf

Class Program
    Shared Sub Main(ByVal args As String())
        Dim renderer = New ChromePdfRenderer()

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

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Playwright使用PdfAsync()。 IronPDF提供了一個單一的RenderUrlAsPdf()方法，在一個呼叫中處理導航和PDF生成。注意Playwright需要在RenderingOptions.PaperSize來配置紙張大小。在我們的教程中了解更多。

範例3：具有邊距的自訂頁面大小

之前（Playwright）：

// NuGet: Install-Package Microsoft.Playwright
using Microsoft.Playwright;
using System.Threading.Tasks;

class Program
{
    static async Task Main()
    {
        using var playwright = await Playwright.CreateAsync();
        await using var browser = await playwright.Chromium.LaunchAsync();
        var page = await browser.NewPageAsync();
        await page.SetContentAsync("<h1>Custom PDF</h1><p>Letter size with margins</p>");
        await page.PdfAsync(new PagePdfOptions 
        { 
            Path = "custom.pdf",
            Format = "Letter",
            Margin = new Margin { Top = "1in", Bottom = "1in", Left = "0.5in", Right = "0.5in" }
        });
    }
}

// NuGet: Install-Package Microsoft.Playwright
using Microsoft.Playwright;
using System.Threading.Tasks;

class Program
{
    static async Task Main()
    {
        using var playwright = await Playwright.CreateAsync();
        await using var browser = await playwright.Chromium.LaunchAsync();
        var page = await browser.NewPageAsync();
        await page.SetContentAsync("<h1>Custom PDF</h1><p>Letter size with margins</p>");
        await page.PdfAsync(new PagePdfOptions 
        { 
            Path = "custom.pdf",
            Format = "Letter",
            Margin = new Margin { Top = "1in", Bottom = "1in", Left = "0.5in", Right = "0.5in" }
        });
    }
}

Imports Microsoft.Playwright
Imports System.Threading.Tasks

Module Program
    Async Function Main() As Task
        Using playwright = Await Playwright.CreateAsync()
            Await Using browser = Await playwright.Chromium.LaunchAsync()
                Dim page = Await browser.NewPageAsync()
                Await page.SetContentAsync("<h1>Custom PDF</h1><p>Letter size with margins</p>")
                Await page.PdfAsync(New PagePdfOptions With {
                    .Path = "custom.pdf",
                    .Format = "Letter",
                    .Margin = New Margin With {
                        .Top = "1in",
                        .Bottom = "1in",
                        .Left = "0.5in",
                        .Right = "0.5in"
                    }
                })
            End Using
        End Using
    End Function
End Module

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之後（IronPDF）：

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

class Program
{
    static void Main()
    {
        var renderer = new ChromePdfRenderer();
        renderer.RenderingOptions.PaperSize = PdfPaperSize.Letter;
        renderer.RenderingOptions.MarginTop = 25;
        renderer.RenderingOptions.MarginBottom = 25;
        renderer.RenderingOptions.MarginLeft = 12;
        renderer.RenderingOptions.MarginRight = 12;
        var pdf = renderer.RenderHtmlAsPdf("<h1>Custom PDF</h1><p>Letter size with margins</p>");
        pdf.SaveAs("custom.pdf");
    }
}

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

class Program
{
    static void Main()
    {
        var renderer = new ChromePdfRenderer();
        renderer.RenderingOptions.PaperSize = PdfPaperSize.Letter;
        renderer.RenderingOptions.MarginTop = 25;
        renderer.RenderingOptions.MarginBottom = 25;
        renderer.RenderingOptions.MarginLeft = 12;
        renderer.RenderingOptions.MarginRight = 12;
        var pdf = renderer.RenderHtmlAsPdf("<h1>Custom PDF</h1><p>Letter size with margins</p>");
        pdf.SaveAs("custom.pdf");
    }
}

Imports IronPdf
Imports IronPdf.Rendering

Class Program
    Shared Sub Main()
        Dim renderer As New ChromePdfRenderer()
        renderer.RenderingOptions.PaperSize = PdfPaperSize.Letter
        renderer.RenderingOptions.MarginTop = 25
        renderer.RenderingOptions.MarginBottom = 25
        renderer.RenderingOptions.MarginLeft = 12
        renderer.RenderingOptions.MarginRight = 12
        Dim pdf = renderer.RenderHtmlAsPdf("<h1>Custom PDF</h1><p>Letter size with margins</p>")
        pdf.SaveAs("custom.pdf")
    End Sub
End Class

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Playwright使用字串值邊距（"0.5in"），而IronPDF使用數字毫米值。轉換為：1英寸=25.4毫米，所以12。 Playwright的PaperSize = PdfPaperSize.Letter。

範例4：標頭、頁腳和自訂設置

之前（Playwright）：

// NuGet: Install-Package Microsoft.Playwright
using Microsoft.Playwright;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        var playwright = await Playwright.CreateAsync();
        var browser = await playwright.Chromium.LaunchAsync();
        var page = await browser.NewPageAsync();

        string html = "<h1>Custom PDF</h1><p>With margins and headers.</p>";
        await page.SetContentAsync(html);

        await page.PdfAsync(new PagePdfOptions
        {
            Path = "custom.pdf",
            Format = "A4",
            Margin = new Margin { Top = "1cm", Bottom = "1cm", Left = "1cm", Right = "1cm" },
            DisplayHeaderFooter = true,
            HeaderTemplate = "<div style='font-size:10px; text-align:center;'>Header</div>",
            FooterTemplate = "<div style='font-size:10px; text-align:center;'>Page <span class='pageNumber'></span></div>"
        });

        await browser.CloseAsync();
    }
}

// NuGet: Install-Package Microsoft.Playwright
using Microsoft.Playwright;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        var playwright = await Playwright.CreateAsync();
        var browser = await playwright.Chromium.LaunchAsync();
        var page = await browser.NewPageAsync();

        string html = "<h1>Custom PDF</h1><p>With margins and headers.</p>";
        await page.SetContentAsync(html);

        await page.PdfAsync(new PagePdfOptions
        {
            Path = "custom.pdf",
            Format = "A4",
            Margin = new Margin { Top = "1cm", Bottom = "1cm", Left = "1cm", Right = "1cm" },
            DisplayHeaderFooter = true,
            HeaderTemplate = "<div style='font-size:10px; text-align:center;'>Header</div>",
            FooterTemplate = "<div style='font-size:10px; text-align:center;'>Page <span class='pageNumber'></span></div>"
        });

        await browser.CloseAsync();
    }
}

Imports Microsoft.Playwright
Imports System.Threading.Tasks

Module Program
    Async Function Main(args As String()) As Task
        Dim playwright = Await Playwright.CreateAsync()
        Dim browser = Await playwright.Chromium.LaunchAsync()
        Dim page = Await browser.NewPageAsync()

        Dim html As String = "<h1>Custom PDF</h1><p>With margins and headers.</p>"
        Await page.SetContentAsync(html)

        Await page.PdfAsync(New PagePdfOptions With {
            .Path = "custom.pdf",
            .Format = "A4",
            .Margin = New Margin With {.Top = "1cm", .Bottom = "1cm", .Left = "1cm", .Right = "1cm"},
            .DisplayHeaderFooter = True,
            .HeaderTemplate = "<div style='font-size:10px; text-align:center;'>Header</div>",
            .FooterTemplate = "<div style='font-size:10px; text-align:center;'>Page <span class='pageNumber'></span></div>"
        })

        Await browser.CloseAsync()
    End Function
End Module

$vbLabelText $csharpLabel

之後（IronPDF）：

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

class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();

        renderer.RenderingOptions.MarginTop = 10;
        renderer.RenderingOptions.MarginBottom = 10;
        renderer.RenderingOptions.MarginLeft = 10;
        renderer.RenderingOptions.MarginRight = 10;
        renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
        renderer.RenderingOptions.TextHeader.CenterText = "Header";
        renderer.RenderingOptions.TextFooter.CenterText = "Page {page}";

        string html = "<h1>Custom PDF</h1><p>With margins and headers.</p>";
        var pdf = renderer.RenderHtmlAsPdf(html);
        pdf.SaveAs("custom.pdf");
    }
}

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

class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();

        renderer.RenderingOptions.MarginTop = 10;
        renderer.RenderingOptions.MarginBottom = 10;
        renderer.RenderingOptions.MarginLeft = 10;
        renderer.RenderingOptions.MarginRight = 10;
        renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
        renderer.RenderingOptions.TextHeader.CenterText = "Header";
        renderer.RenderingOptions.TextFooter.CenterText = "Page {page}";

        string html = "<h1>Custom PDF</h1><p>With margins and headers.</p>";
        var pdf = renderer.RenderHtmlAsPdf(html);
        pdf.SaveAs("custom.pdf");
    }
}

Imports IronPdf
Imports IronPdf.Rendering

Class Program
    Shared Sub Main(args As String())
        Dim renderer = New ChromePdfRenderer()

        renderer.RenderingOptions.MarginTop = 10
        renderer.RenderingOptions.MarginBottom = 10
        renderer.RenderingOptions.MarginLeft = 10
        renderer.RenderingOptions.MarginRight = 10
        renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
        renderer.RenderingOptions.TextHeader.CenterText = "Header"
        renderer.RenderingOptions.TextFooter.CenterText = "Page {page}"

        Dim html As String = "<h1>Custom PDF</h1><p>With margins and headers.</p>"
        Dim pdf = renderer.RenderHtmlAsPdf(html)
        pdf.SaveAs("custom.pdf")
    End Sub
End Class

$vbLabelText $csharpLabel

此範例顯示標頭/頁腳佔位符語法差異。 Playwright使用基於HTML類的佔位符（{page}）。注意Playwright需要DisplayHeaderFooter = true來啟用標頭/頁腳，而IronPDF在您設置標頭/頁腳內容時會自動啟用它們。

關鍵遷移注意事項

異步到同步轉換

Playwright需要整個過程的async/await； IronPDF支持同步操作：

// Playwright: Async required
public async Task<byte[]> GeneratePdfAsync(string html)
{
    using var playwright = await Playwright.CreateAsync();
    await using var browser = await playwright.Chromium.LaunchAsync();
    var page = await browser.NewPageAsync();
    await page.SetContentAsync(html);
    return await page.PdfAsync();
}

// IronPDF: Sync is simpler
public byte[] GeneratePdf(string html)
{
    var renderer = new ChromePdfRenderer();
    return renderer.RenderHtmlAsPdf(html).BinaryData;
}

// Playwright: Async required
public async Task<byte[]> GeneratePdfAsync(string html)
{
    using var playwright = await Playwright.CreateAsync();
    await using var browser = await playwright.Chromium.LaunchAsync();
    var page = await browser.NewPageAsync();
    await page.SetContentAsync(html);
    return await page.PdfAsync();
}

// IronPDF: Sync is simpler
public byte[] GeneratePdf(string html)
{
    var renderer = new ChromePdfRenderer();
    return renderer.RenderHtmlAsPdf(html).BinaryData;
}

Imports System.Threading.Tasks
Imports Microsoft.Playwright

Public Class PdfGenerator
    ' Playwright: Async required
    Public Async Function GeneratePdfAsync(html As String) As Task(Of Byte())
        Using playwright = Await Playwright.CreateAsync()
            Await Using browser = Await playwright.Chromium.LaunchAsync()
                Dim page = Await browser.NewPageAsync()
                Await page.SetContentAsync(html)
                Return Await page.PdfAsync()
            End Using
        End Using
    End Function

    ' IronPDF: Sync is simpler
    Public Function GeneratePdf(html As String) As Byte()
        Dim renderer = New ChromePdfRenderer()
        Return renderer.RenderHtmlAsPdf(html).BinaryData
    End Function
End Class

$vbLabelText $csharpLabel

邊距單位轉換

Playwright使用字串單位； IronPDF使用數字毫米：

Playwright	IronPDF（毫米）
`"1in"`	`25`
`"0.5in"`	`12`
`"1cm"`	`10`

標頭/頁腳佔位符轉換

Playwright類別	IronPDF 佔位符
`<span class='pageNumber'>`	`{page}`
`<span class='totalPages'>`	`{total-pages}`
`<span class='date'>`	`{date}`
`<span class='title'>`	`{html-title}`

瀏覽器生命周期消除

刪除所有的瀏覽器管理程式碼：

// Playwright: Explicit cleanup required
await page.CloseAsync();
await browser.CloseAsync();
playwright.Dispose();

// IronPDF: No disposal needed - just use the renderer
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("output.pdf");

// Playwright: Explicit cleanup required
await page.CloseAsync();
await browser.CloseAsync();
playwright.Dispose();

// IronPDF: No disposal needed - just use the renderer
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("output.pdf");

' Playwright: Explicit cleanup required
Await page.CloseAsync()
Await browser.CloseAsync()
playwright.Dispose()

' IronPDF: No disposal needed - just use the renderer
Dim renderer As New ChromePdfRenderer()
Dim pdf = renderer.RenderHtmlAsPdf(html)
pdf.SaveAs("output.pdf")

$vbLabelText $csharpLabel

遷移後的新能力

在遷移到IronPDF後，您將獲得Playwright不能提供的功能：

PDF合併

var pdf1 = renderer.RenderHtmlAsPdf(html1);
var pdf2 = renderer.RenderHtmlAsPdf(html2);
var merged = PdfDocument.Merge(pdf1, pdf2);
merged.SaveAs("merged.pdf");

var pdf1 = renderer.RenderHtmlAsPdf(html1);
var pdf2 = renderer.RenderHtmlAsPdf(html2);
var merged = PdfDocument.Merge(pdf1, pdf2);
merged.SaveAs("merged.pdf");

Dim pdf1 = renderer.RenderHtmlAsPdf(html1)
Dim pdf2 = renderer.RenderHtmlAsPdf(html2)
Dim merged = PdfDocument.Merge(pdf1, pdf2)
merged.SaveAs("merged.pdf")

$vbLabelText $csharpLabel

水印

pdf.ApplyWatermark("<h1 style='color:red; opacity:0.3;'>DRAFT</h1>");

pdf.ApplyWatermark("<h1 style='color:red; opacity:0.3;'>DRAFT</h1>");

IRON VB CONVERTER ERROR developers@ironsoftware.com

$vbLabelText $csharpLabel

密碼保護

pdf.SecuritySettings.OwnerPassword = "admin";
pdf.SecuritySettings.UserPassword = "readonly";
pdf.SecuritySettings.AllowUserCopyPasteContent = false;

pdf.SecuritySettings.OwnerPassword = "admin";
pdf.SecuritySettings.UserPassword = "readonly";
pdf.SecuritySettings.AllowUserCopyPasteContent = false;

pdf.SecuritySettings.OwnerPassword = "admin"
pdf.SecuritySettings.UserPassword = "readonly"
pdf.SecuritySettings.AllowUserCopyPasteContent = False

$vbLabelText $csharpLabel

數位簽名

var signature = new PdfSignature("certificate.pfx", "password");
pdf.Sign(signature);

var signature = new PdfSignature("certificate.pfx", "password");
pdf.Sign(signature);

Dim signature = New PdfSignature("certificate.pfx", "password")
pdf.Sign(signature)

$vbLabelText $csharpLabel

PDF/A合規性

pdf.SaveAsPdfA("archive.pdf", PdfAVersions.PdfA3b);

pdf.SaveAsPdfA("archive.pdf", PdfAVersions.PdfA3b);

pdf.SaveAsPdfA("archive.pdf", PdfAVersions.PdfA3b)

$vbLabelText $csharpLabel

遷移檢查表

遷移前

識別所有Playwright的PDF生成程式碼
文件邊距值（將英寸/厘米轉換為毫米）
注意標頭/頁腳佔位符語法轉換
獲取IronPDF授權金鑰來自ironpdf.com

套件變更

移除Microsoft.Playwright NuGet包
刪除.playwright資料夾（以及在使用者配置檔下的快取Playwright瀏覽器二進制）
安裝IronPdf NuGet包：dotnet add package IronPdf

程式碼變更

更新命名空間導入
用ChromePdfRenderer替換異步瀏覽器生命周期
將page.SetContentAsync() + RenderHtmlAsPdf()
將page.GotoAsync() + RenderUrlAsPdf()
將邊距字串轉換為毫米值
轉換標頭/頁腳佔位符語法
移除所有的瀏覽器/頁面釋放程式碼
在應用程式啟動時新增授權初始化

遷移後

PDF輸出的視覺比較
驗證標頭/頁腳渲染與頁碼的精確性
測試邊距和頁面大小的精確性
根據需要新增新功能（安全性、水印、合併）

請注意Playwright是其相應所有者的註冊商標。此網站與Microsoft無關，也未獲其認可或贊助。所有產品名稱、標誌和品牌均為其各自所有者的財產。比較僅供參考，反映撰寫時公開可用的資訊。

Curtis Chau

立即與工程團隊聊天

技術作家

Curtis Chau擁有Carleton大學的電腦科學學士學位，專精於前端開發，擁有Node.js、TypeScript、JavaScript和React的專業知識。Curtis熱衷於建立直觀且美觀的使用者介面，喜愛使用現代框架並建立結構良好、視覺吸引力的手冊。

除了開發，Curtis對物聯網（IoT）有濃厚的興趣，探索創新的方法來整合硬體和軟體。在空閒時間，他喜歡玩遊戲和建立Discord機器人，結合他對技術的熱愛與創造力。

已更新2026年7月19日

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using IronPDF 在 PDFs 中渲染 WebGL 內容

為什麼從Playwright遷移到IronPDF

了解.NET的Playwright

使用Playwright生成PDF時的考量

配置介面

Playwright與IronPDF性能比較

底線

開始之前

前提條件

NuGet包變更

授權配置

完整API參考

名稱空間變更

核心API對應

程式碼遷移範例

範例1：HTML字串轉PDF

範例2：URL轉PDF轉換

範例3：具有邊距的自訂頁面大小

範例4：標頭、頁腳和自訂設置

關鍵遷移注意事項

異步到同步轉換

邊距單位轉換

標頭/頁腳佔位符轉換

瀏覽器生命周期消除

遷移後的新能力

PDF合併

水印

密碼保護

數位簽名

PDF/A合規性

遷移檢查表

遷移前

套件變更

程式碼變更

遷移後

相關文章

如何在 .NET 10 中使用 C# 將 HTML 轉換為 PDF | IronPDF for .NET

如何用 C# 設置 PDF 的自訂紙張大小 | IronPDF

如何在 C# | IronPDF 中使用 IronPDF 轉換 PDF 頁面

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