MIGRATION GUIDES How to Migrate from PuppeteerSharp to IronPDF in C# 커티스 차우 게시됨:2월 1, 2026 다운로드 IronPDF NuGet 다운로드 DLL 다운로드 윈도우 설치 프로그램 무료 체험 시작하기 LLM용 사본 LLM용 사본 LLM용 마크다운 형식으로 페이지를 복사하세요 ChatGPT에서 열기 ChatGPT에 이 페이지에 대해 문의하세요 제미니에서 열기 제미니에게 이 페이지에 대해 문의하세요 Grok에서 열기 Grok에게 이 페이지에 대해 문의하세요 혼란 속에서 열기 Perplexity에게 이 페이지에 대해 문의하세요 공유하다 페이스북에 공유하기 트위터에 공유하기 LinkedIn에 공유하기 URL 복사 이메일로 기사 보내기 Migrating from PuppeteerSharp to IronPDF transforms your PDF generation workflow from a browser automation tool with 300MB+ dependencies to a purpose-built PDF library with automatic memory management. This guide provides a complete, step-by-step migration path that eliminates Chromium downloads, solves memory leak issues, and provides comprehensive PDF manipulation capabilities. Why Migrate from PuppeteerSharp to IronPDF Understanding PuppeteerSharp PuppeteerSharp is a .NET port of Google's Puppeteer, bringing browser automation capabilities to C#. It generates PDFs using Chrome's built-in print-to-PDF functionality—the same as hitting Ctrl+P in a browser. This produces print-ready output optimized for paper, which differs from what you see on screen. PuppeteerSharp was designed for web testing and scraping, not document generation. While capable, using PuppeteerSharp for PDF generation creates significant production challenges. The Browser Automation Problem PuppeteerSharp was designed for browser automation, not document generation. This creates fundamental issues when using it for PDFs: 300MB+ Chromium downloads required before first use. A significant downside of PuppeteerSharp is its hefty deployment size, mainly due to the Chromium binary it bundles. This substantial size can bloat Docker images and cause cold start issues in serverless environments. Memory leaks under load requiring manual browser recycling. Under heavy load, PuppeteerSharp is known to experience memory leaks. The accumulation of memory by browser instances necessitates manual intervention for process management and recycling. Complex async patterns with browser lifecycle management. Print-to-PDF output (equivalent to Ctrl+P, not screen capture). Layouts may reflow, backgrounds may be omitted by default, and the output is paginated for printing rather than matching the browser viewport. No PDF/A or PDF/UA support for compliance requirements. PuppeteerSharp cannot produce PDF/A (archival) or PDF/UA (accessibility) compliant documents. No PDF manipulation - generation only, no merge/split/edit. While PuppeteerSharp is efficient at generating PDFs, it lacks capabilities for further manipulation such as merging, splitting, securing, or editing PDFs. PuppeteerSharp vs IronPDF Comparison Aspect PuppeteerSharp IronPDF Primary Purpose Browser automation PDF generation Chromium Dependency 300MB+ separate download Built-in optimized engine API Complexity Async browser/page lifecycle Synchronous one-liners Initialization BrowserFetcher.DownloadAsync() + LaunchAsync new ChromePdfRenderer() Memory Management Manual browser recycling required Automatic Memory Under Load 500MB+ with leaks ~50MB stable Cold Start 45+ seconds ~20 seconds PDF/A Support Not available Supported PDF/UA Accessibility Not available Supported PDF Editing Not available Merge, split, stamp, edit Digital Signatures Not available Supported Thread Safety Limited Full Professional Support Community Commercial with SLA Platform Support | Library | .NET Framework 4.7.2 | .NET Core 3.1 | .NET 6-8 | .NET 10 | | --------- | :---: | :---: | :---: | :---: || IronPDF | Full | Full | Full | Full || PuppeteerSharp | Limited | Full | Full | Pending | IronPDF's extensive support across .NET platforms ensures developers can leverage it in various environments without encountering compatibility issues, providing a flexible choice for modern .NET applications through 2025 and 2026. Before You Start Prerequisites .NET Environment: .NET Framework 4.6.2+ or .NET Core 3.1+ / .NET 5/6/7/8/9+ NuGet Access: Ability to install NuGet packages IronPDF License: Obtain your license key from ironpdf.com NuGet Package Changes # Remove PuppeteerSharp dotnet remove package PuppeteerSharp # Remove downloaded Chromium binaries (~300MB recovered) # Delete the .local-chromium folder # Add IronPDF dotnet add package IronPdf # Remove PuppeteerSharp dotnet remove package PuppeteerSharp # Remove downloaded Chromium binaries (~300MB recovered) # Delete the .local-chromium folder # Add IronPDF dotnet add package IronPdf SHELL No BrowserFetcher.DownloadAsync() required with IronPDF - the rendering engine is bundled automatically. License Configuration // Add at application startup IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"; // Add at application startup IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"; $vbLabelText $csharpLabel Complete API Reference Namespace Changes // Before: PuppeteerSharp using PuppeteerSharp; using PuppeteerSharp.Media; using System.Threading.Tasks; // After: IronPDF using IronPdf; using IronPdf.Rendering; // Before: PuppeteerSharp using PuppeteerSharp; using PuppeteerSharp.Media; using System.Threading.Tasks; // After: IronPDF using IronPdf; using IronPdf.Rendering; $vbLabelText $csharpLabel Core API Mappings PuppeteerSharp API IronPDF API Notes new BrowserFetcher().DownloadAsync() Not needed No browser download Puppeteer.LaunchAsync(options) Not needed No browser management browser.NewPageAsync() Not needed No page context page.GoToAsync(url) renderer.RenderUrlAsPdf(url) Direct rendering page.SetContentAsync(html) renderer.RenderHtmlAsPdf(html) Direct rendering page.PdfAsync(path) pdf.SaveAs(path) After rendering await page.CloseAsync() Not needed Automatic cleanup await browser.CloseAsync() Not needed Automatic cleanup PdfOptions.Format RenderingOptions.PaperSize Paper size PdfOptions.Landscape RenderingOptions.PaperOrientation Orientation PdfOptions.MarginOptions RenderingOptions.MarginTop/Bottom/Left/Right Individual margins PdfOptions.PrintBackground RenderingOptions.PrintHtmlBackgrounds Background printing PdfOptions.HeaderTemplate RenderingOptions.HtmlHeader HTML headers PdfOptions.FooterTemplate RenderingOptions.HtmlFooter HTML footers page.WaitForSelectorAsync() RenderingOptions.WaitFor.HtmlElementId Wait for element Code Migration Examples Example 1: Basic HTML to PDF Conversion Before (PuppeteerSharp): // NuGet: Install-Package PuppeteerSharp using PuppeteerSharp; using System.Threading.Tasks; class Program { static async Task Main(string[] args) { var browserFetcher = new BrowserFetcher(); await browserFetcher.DownloadAsync(); await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }); await using var page = await browser.NewPageAsync(); await page.SetContentAsync("<h1>Hello World</h1><p>This is a PDF document.</p>"); await page.PdfAsync("output.pdf"); } } // NuGet: Install-Package PuppeteerSharp using PuppeteerSharp; using System.Threading.Tasks; class Program { static async Task Main(string[] args) { var browserFetcher = new BrowserFetcher(); await browserFetcher.DownloadAsync(); await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }); await using var page = await browser.NewPageAsync(); await page.SetContentAsync("<h1>Hello World</h1><p>This is a PDF document.</p>"); await page.PdfAsync("output.pdf"); } } $vbLabelText $csharpLabel After (IronPDF): // NuGet: Install-Package IronPdf using IronPdf; class Program { static void Main(string[] args) { var renderer = new ChromePdfRenderer(); var pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1><p>This is a PDF document.</p>"); pdf.SaveAs("output.pdf"); } } // NuGet: Install-Package IronPdf using IronPdf; class Program { static void Main(string[] args) { var renderer = new ChromePdfRenderer(); var pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1><p>This is a PDF document.</p>"); pdf.SaveAs("output.pdf"); } } $vbLabelText $csharpLabel This example demonstrates the fundamental architectural difference. PuppeteerSharp requires six async operations: BrowserFetcher.DownloadAsync() (300MB+ Chromium download), Puppeteer.LaunchAsync(), browser.NewPageAsync(), page.SetContentAsync(), and page.PdfAsync(), plus proper disposal with await using. IronPDF eliminates all this complexity: create a ChromePdfRenderer, call RenderHtmlAsPdf(), and SaveAs(). No async patterns, no browser lifecycle, no Chromium downloads. IronPDF's approach offers cleaner syntax and better integration with modern .NET applications. See the HTML to PDF documentation for comprehensive examples. Example 2: URL to PDF Conversion Before (PuppeteerSharp): // NuGet: Install-Package PuppeteerSharp using PuppeteerSharp; using System.Threading.Tasks; class Program { static async Task Main(string[] args) { var browserFetcher = new BrowserFetcher(); await browserFetcher.DownloadAsync(); await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }); await using var page = await browser.NewPageAsync(); await page.GoToAsync("https://www.example.com"); await page.PdfAsync("webpage.pdf"); } } // NuGet: Install-Package PuppeteerSharp using PuppeteerSharp; using System.Threading.Tasks; class Program { static async Task Main(string[] args) { var browserFetcher = new BrowserFetcher(); await browserFetcher.DownloadAsync(); await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }); await using var page = await browser.NewPageAsync(); await page.GoToAsync("https://www.example.com"); await page.PdfAsync("webpage.pdf"); } } $vbLabelText $csharpLabel After (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"); } } $vbLabelText $csharpLabel PuppeteerSharp uses GoToAsync() to navigate to a URL followed by PdfAsync(). IronPDF provides a single RenderUrlAsPdf() method that handles navigation and PDF generation in one call. Learn more in our tutorials. Example 3: Custom Page Settings with Margins Before (PuppeteerSharp): // NuGet: Install-Package PuppeteerSharp using PuppeteerSharp; using PuppeteerSharp.Media; using System.Threading.Tasks; class Program { static async Task Main(string[] args) { var browserFetcher = new BrowserFetcher(); await browserFetcher.DownloadAsync(); await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }); await using var page = await browser.NewPageAsync(); await page.SetContentAsync("<h1>Custom PDF</h1><p>With landscape orientation and margins.</p>"); await page.PdfAsync("custom.pdf", new PdfOptions { Format = PaperFormat.A4, Landscape = true, MarginOptions = new MarginOptions { Top = "20mm", Bottom = "20mm", Left = "20mm", Right = "20mm" } }); } } // NuGet: Install-Package PuppeteerSharp using PuppeteerSharp; using PuppeteerSharp.Media; using System.Threading.Tasks; class Program { static async Task Main(string[] args) { var browserFetcher = new BrowserFetcher(); await browserFetcher.DownloadAsync(); await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }); await using var page = await browser.NewPageAsync(); await page.SetContentAsync("<h1>Custom PDF</h1><p>With landscape orientation and margins.</p>"); await page.PdfAsync("custom.pdf", new PdfOptions { Format = PaperFormat.A4, Landscape = true, MarginOptions = new MarginOptions { Top = "20mm", Bottom = "20mm", Left = "20mm", Right = "20mm" } }); } } $vbLabelText $csharpLabel After (IronPDF): // NuGet: Install-Package IronPdf using IronPdf; using IronPdf.Rendering; class Program { static void Main(string[] args) { var renderer = new ChromePdfRenderer(); renderer.RenderingOptions.PaperSize = PdfPaperSize.A4; renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Landscape; renderer.RenderingOptions.MarginTop = 20; renderer.RenderingOptions.MarginBottom = 20; renderer.RenderingOptions.MarginLeft = 20; renderer.RenderingOptions.MarginRight = 20; var pdf = renderer.RenderHtmlAsPdf("<h1>Custom PDF</h1><p>With landscape orientation and margins.</p>"); 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.PaperSize = PdfPaperSize.A4; renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Landscape; renderer.RenderingOptions.MarginTop = 20; renderer.RenderingOptions.MarginBottom = 20; renderer.RenderingOptions.MarginLeft = 20; renderer.RenderingOptions.MarginRight = 20; var pdf = renderer.RenderHtmlAsPdf("<h1>Custom PDF</h1><p>With landscape orientation and margins.</p>"); pdf.SaveAs("custom.pdf"); } } $vbLabelText $csharpLabel This example shows how PDF options map between the two libraries. PuppeteerSharp uses PdfOptions with Format, Landscape, and MarginOptions containing string values ("20mm"). IronPDF uses RenderingOptions properties with direct paper size enums, orientation enums, and numeric margin values in millimeters. Key mappings: Format = PaperFormat.A4 → PaperSize = PdfPaperSize.A4 Landscape = true → PaperOrientation = PdfPaperOrientation.Landscape MarginOptions.Top = "20mm" → MarginTop = 20 (numeric millimeters) The Memory Leak Problem PuppeteerSharp is notorious for memory accumulation under sustained load: // ❌ PuppeteerSharp - Memory grows with each operation // Requires explicit browser recycling every N operations for (int i = 0; i < 1000; i++) { var page = await browser.NewPageAsync(); await page.SetContentAsync($"<h1>Document {i}</h1>"); await page.PdfAsync($"doc_{i}.pdf"); await page.CloseAsync(); // Memory still accumulates! } // Must periodically: await browser.CloseAsync(); and re-launch // ✅ IronPDF - Stable memory, reuse renderer var renderer = new ChromePdfRenderer(); for (int i = 0; i < 1000; i++) { var pdf = renderer.RenderHtmlAsPdf($"<h1>Document {i}</h1>"); pdf.SaveAs($"doc_{i}.pdf"); // Memory managed automatically } // ❌ PuppeteerSharp - Memory grows with each operation // Requires explicit browser recycling every N operations for (int i = 0; i < 1000; i++) { var page = await browser.NewPageAsync(); await page.SetContentAsync($"<h1>Document {i}</h1>"); await page.PdfAsync($"doc_{i}.pdf"); await page.CloseAsync(); // Memory still accumulates! } // Must periodically: await browser.CloseAsync(); and re-launch // ✅ IronPDF - Stable memory, reuse renderer var renderer = new ChromePdfRenderer(); for (int i = 0; i < 1000; i++) { var pdf = renderer.RenderHtmlAsPdf($"<h1>Document {i}</h1>"); pdf.SaveAs($"doc_{i}.pdf"); // Memory managed automatically } $vbLabelText $csharpLabel IronPDF eliminates the need for browser pooling infrastructure that PuppeteerSharp requires: // Before (PuppeteerSharp - delete entire class) public class PuppeteerBrowserPool { private readonly ConcurrentBag<IBrowser> _browsers; private readonly SemaphoreSlim _semaphore; private int _operationCount; // ... recycling logic ... } // After (IronPDF - simple reuse) public class PdfService { private readonly ChromePdfRenderer _renderer = new(); public byte[] Generate(string html) { return _renderer.RenderHtmlAsPdf(html).BinaryData; } } // Before (PuppeteerSharp - delete entire class) public class PuppeteerBrowserPool { private readonly ConcurrentBag<IBrowser> _browsers; private readonly SemaphoreSlim _semaphore; private int _operationCount; // ... recycling logic ... } // After (IronPDF - simple reuse) public class PdfService { private readonly ChromePdfRenderer _renderer = new(); public byte[] Generate(string html) { return _renderer.RenderHtmlAsPdf(html).BinaryData; } } $vbLabelText $csharpLabel Critical Migration Notes Async to Sync Conversion PuppeteerSharp requires async/await throughout; IronPDF supports synchronous operations: // PuppeteerSharp: Async required public async Task<byte[]> GeneratePdfAsync(string html) { await new BrowserFetcher().DownloadAsync(); await using var browser = await Puppeteer.LaunchAsync(...); await using var page = await browser.NewPageAsync(); await page.SetContentAsync(html); return await page.PdfDataAsync(); } // IronPDF: Sync default public byte[] GeneratePdf(string html) { var renderer = new ChromePdfRenderer(); return renderer.RenderHtmlAsPdf(html).BinaryData; } // Or async when needed public async Task<byte[]> GeneratePdfAsync(string html) { var renderer = new ChromePdfRenderer(); var pdf = await renderer.RenderHtmlAsPdfAsync(html); return pdf.BinaryData; } // PuppeteerSharp: Async required public async Task<byte[]> GeneratePdfAsync(string html) { await new BrowserFetcher().DownloadAsync(); await using var browser = await Puppeteer.LaunchAsync(...); await using var page = await browser.NewPageAsync(); await page.SetContentAsync(html); return await page.PdfDataAsync(); } // IronPDF: Sync default public byte[] GeneratePdf(string html) { var renderer = new ChromePdfRenderer(); return renderer.RenderHtmlAsPdf(html).BinaryData; } // Or async when needed public async Task<byte[]> GeneratePdfAsync(string html) { var renderer = new ChromePdfRenderer(); var pdf = await renderer.RenderHtmlAsPdfAsync(html); return pdf.BinaryData; } $vbLabelText $csharpLabel Margin Unit Conversion PuppeteerSharp uses string units; IronPDF uses numeric millimeters: // PuppeteerSharp - string units MarginOptions = new MarginOptions { Top = "1in", // 25.4mm Bottom = "0.75in", // 19mm Left = "1cm", // 10mm Right = "20px" // ~7.5mm at 96dpi } // IronPDF - numeric millimeters renderer.RenderingOptions.MarginTop = 25; // mm renderer.RenderingOptions.MarginBottom = 19; renderer.RenderingOptions.MarginLeft = 10; renderer.RenderingOptions.MarginRight = 8; // PuppeteerSharp - string units MarginOptions = new MarginOptions { Top = "1in", // 25.4mm Bottom = "0.75in", // 19mm Left = "1cm", // 10mm Right = "20px" // ~7.5mm at 96dpi } // IronPDF - numeric millimeters renderer.RenderingOptions.MarginTop = 25; // mm renderer.RenderingOptions.MarginBottom = 19; renderer.RenderingOptions.MarginLeft = 10; renderer.RenderingOptions.MarginRight = 8; $vbLabelText $csharpLabel Header/Footer Placeholder Conversion PuppeteerSharp Class IronPDF Placeholder <span class='pageNumber'> {page} <span class='totalPages'> {total-pages} <span class='date'> {date} <span class='title'> {html-title} New Capabilities After Migration After migrating to IronPDF, you gain capabilities that PuppeteerSharp cannot provide: PDF Merging 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"); $vbLabelText $csharpLabel Watermarks var watermark = new TextStamper { Text = "CONFIDENTIAL", FontSize = 48, Opacity = 30, Rotation = -45 }; pdf.ApplyStamp(watermark); var watermark = new TextStamper { Text = "CONFIDENTIAL", FontSize = 48, Opacity = 30, Rotation = -45 }; pdf.ApplyStamp(watermark); $vbLabelText $csharpLabel Password Protection 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 Digital Signatures var signature = new PdfSignature("certificate.pfx", "password"); pdf.Sign(signature); var signature = new PdfSignature("certificate.pfx", "password"); pdf.Sign(signature); $vbLabelText $csharpLabel PDF/A Compliance pdf.SaveAsPdfA("archive.pdf", PdfAVersions.PdfA3b); pdf.SaveAsPdfA("archive.pdf", PdfAVersions.PdfA3b); $vbLabelText $csharpLabel Performance Comparison Summary Metric PuppeteerSharp IronPDF Improvement First PDF (Cold Start) 45s+ ~20s 55%+ faster Subsequent PDFs Variable Consistent Predictable Memory Usage 500MB+ (grows) ~50MB (stable) 90% less memory Disk Space (Chromium) 300MB+ 0 Eliminate downloads Browser Download Required Not needed Zero setup Thread Safety Limited Full Reliable concurrency PDF Generation Time 45s 20s 55% faster Migration Checklist Pre-Migration Identify all PuppeteerSharp usages in codebase Document margin values (convert strings to millimeters) Note header/footer placeholder syntax for conversion Delete browser pooling/recycling infrastructure Obtain IronPDF license key from ironpdf.com Package Changes Remove PuppeteerSharp NuGet package Delete .local-chromium folder to reclaim ~300MB disk space Install IronPdf NuGet package: dotnet add package IronPdf Code Changes Update namespace imports Remove BrowserFetcher.DownloadAsync() calls Remove Puppeteer.LaunchAsync() and browser management Replace page.SetContentAsync() + page.PdfAsync() with RenderHtmlAsPdf() Replace page.GoToAsync() + page.PdfAsync() with RenderUrlAsPdf() Convert margin strings to millimeter values Convert header/footer placeholder syntax Remove all browser/page disposal code Delete browser pooling infrastructure Add license initialization at application startup Post-Migration Visual comparison of PDF output Load test for memory stability (should stay stable without recycling) Verify header/footer rendering with page numbers Add new capabilities (security, watermarks, merging) as needed 커티스 차우 지금 바로 엔지니어링 팀과 채팅하세요 기술 문서 작성자 커티스 차우는 칼턴 대학교에서 컴퓨터 과학 학사 학위를 취득했으며, Node.js, TypeScript, JavaScript, React를 전문으로 하는 프론트엔드 개발자입니다. 직관적이고 미적으로 뛰어난 사용자 인터페이스를 만드는 데 열정을 가진 그는 최신 프레임워크를 활용하고, 잘 구성되고 시각적으로 매력적인 매뉴얼을 제작하는 것을 즐깁니다. 커티스는 개발 분야 외에도 사물 인터넷(IoT)에 깊은 관심을 가지고 있으며, 하드웨어와 소프트웨어를 통합하는 혁신적인 방법을 연구합니다. 여가 시간에는 게임을 즐기거나 디스코드 봇을 만들면서 기술에 대한 애정과 창의성을 결합합니다. 관련 기사 게시됨 2월 1, 2026 How to Migrate from ZetPDF to IronPDF in C# Master the migration from ZetPDF to IronPDF with this complete C# guide. 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