MIGRATION GUIDES

How to Migrate from Easy PDF SDK to IronPDF in C#

게시됨:1월 11, 2026

Easy PDF SDK relies on several legacy technologies that create significant deployment and maintenance challenges in modern development environments.

Common Easy PDF SDK Deployment Issues

Developers frequently encounter these issues when working with Easy PDF SDK:

bcl.easypdf.interop.easypdfprinter.dll error loading
COM object that has been separated from its underlying RCW cannot be used
Timeout expired waiting for print job to complete
The printer operation failed because the service is not running
Error: Access denied (interactive session required)
Cannot find printer: BCL easyPDF Printer

These errors stem from Easy PDF SDK's fundamental architecture—it requires virtual printer drivers, COM interop, and interactive Windows sessions that simply don't exist in modern server environments.

Easy PDF SDK vs. IronPDF: Key Differences

Feature	Easy PDF SDK	IronPDF
Platform	Windows-only	Windows, Linux, macOS, Docker
Office Dependency	Required	None
Installation	Complex MSI + printer driver + COM	Simple NuGet package
Server Support	Requires interactive session	Runs headless
HTML Rendering	Basic (Office-based)	Full Chromium (CSS3, JS)
.NET Support	Limited .NET Core	Full .NET 5/6/7/8/9
Async Pattern	Callback-based	Native async/await
Container Support	Cannot run	Full Docker/Kubernetes

Platform Limitations

Easy PDF SDK's exclusive reliance on Windows systems, requiring Microsoft Office installations for conversions, precludes support for Linux, macOS, or containerized environments like Docker. This dependency makes server setups cumbersome and limits service adoption to Windows environments—a significant constraint for teams practicing multi-platform DevOps or using containers for deployment.

Pre-Migration Preparation

Prerequisites

Ensure your environment meets these requirements:

.NET Framework 4.6.2+ or .NET Core 3.1 / .NET 5-9
Visual Studio 2019+ or VS Code with C# extension
NuGet Package Manager access
IronPDF license key (free trial available at ironpdf.com)

Audit Easy PDF SDK Usage

Run these commands in your solution directory to identify all Easy PDF SDK references:

# Find all BCL using statements
grep -r "using BCL" --include="*.cs" .

# Find Printer/PDFDocument usage
grep -r "Printer\|PDFDocument\|PDFConverter\|HTMLConverter" --include="*.cs" .

# Find COM interop references
grep -r "easyPDF\|BCL.easyPDF" --include="*.csproj" .

# Find configuration settings
grep -r "PageOrientation\|TimeOut\|PrintOffice" --include="*.cs" .

# Find all BCL using statements
grep -r "using BCL" --include="*.cs" .

# Find Printer/PDFDocument usage
grep -r "Printer\|PDFDocument\|PDFConverter\|HTMLConverter" --include="*.cs" .

# Find COM interop references
grep -r "easyPDF\|BCL.easyPDF" --include="*.csproj" .

# Find configuration settings
grep -r "PageOrientation\|TimeOut\|PrintOffice" --include="*.cs" .

SHELL

Breaking Changes to Anticipate

Easy PDF SDK Pattern	Change Required
`new Printer()`	Use `ChromePdfRenderer`
`PrintOfficeDocToPDF()`	Office conversion handled differently
`RenderHTMLToPDF()`	`RenderHtmlAsPdf()`
COM interop references	Remove entirely
Printer driver config	Not needed
`BeginPrintToFile()` callbacks	Native async/await
Interactive session requirements	Runs headless
1-based page indexing	0-based indexing
Timeout in seconds	Timeout in milliseconds

Step-by-Step Migration Process

Step 1: Remove Easy PDF SDK

Easy PDF SDK is typically installed via MSI installer, manual DLL references, or GAC registration. Remove all references:

Uninstall BCL EasyPDF SDK from Programs and Features
Remove DLL references from your project
Remove COM interop references
Clean up GAC entries if present

Step 2: Install IronPDF

# Install IronPDF
dotnet add package IronPdf

# Install IronPDF
dotnet add package IronPdf

SHELL

Or via Package Manager Console:

Install-Package IronPdf

Step 3: Update Namespace References

Replace Easy PDF SDK namespaces with IronPDF:

// Remove these
using BCL.easyPDF;
using BCL.easyPDF.Interop;
using BCL.easyPDF.PDFConverter;
using BCL.easyPDF.Printer;

// Add these
using IronPdf;
using IronPdf.Rendering;

// Remove these
using BCL.easyPDF;
using BCL.easyPDF.Interop;
using BCL.easyPDF.PDFConverter;
using BCL.easyPDF.Printer;

// Add these
using IronPdf;
using IronPdf.Rendering;

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Complete API Migration Reference

Core Class Mapping

Easy PDF SDK Class	IronPDF Equivalent
`Printer`	`ChromePdfRenderer`
`PDFDocument`	`PdfDocument`
`HTMLConverter`	`ChromePdfRenderer`
`PrinterConfiguration`	`ChromePdfRenderOptions`
`PageOrientation`	`PdfPaperOrientation`
`PageSize`	`PdfPaperSize`
`SecurityHandler`	`PdfDocument.SecuritySettings`

PDF Creation Methods

Easy PDF SDK Method	IronPDF Method
`printer.RenderHTMLToPDF(html, path)`	`renderer.RenderHtmlAsPdf(html).SaveAs(path)`
`printer.RenderUrlToPDF(url, path)`	`renderer.RenderUrlAsPdf(url).SaveAs(path)`
`htmlConverter.ConvertHTML(html, doc)`	`renderer.RenderHtmlAsPdf(html)`
`htmlConverter.ConvertURL(url, doc)`	`renderer.RenderUrlAsPdf(url)`

PDF Manipulation Methods

Easy PDF SDK Method	IronPDF Method
`doc.Append(doc2)`	`PdfDocument.Merge(pdf1, pdf2)`
`doc.ExtractPages(start, end)`	`pdf.CopyPages(start, end)`
`doc.DeletePage(index)`	`pdf.RemovePage(index)`
`doc.GetPageCount()`	`pdf.PageCount`
`doc.Save(path)`	`pdf.SaveAs(path)`
`doc.Close()`	`pdf.Dispose()` or `using`
`doc.ExtractText()`	`pdf.ExtractAllText()`

Configuration Options

Easy PDF SDK Option	IronPDF Option
`config.TimeOut`	`RenderingOptions.Timeout`
`config.PageOrientation = Landscape`	`RenderingOptions.PaperOrientation = Landscape`
`config.PageSize = A4`	`RenderingOptions.PaperSize = PdfPaperSize.A4`
`config.MarginTop/Bottom/Left/Right`	`RenderingOptions.MarginTop`, etc.

Code Migration Examples

HTML String to PDF

Easy PDF SDK Implementation:

// NuGet: Install-Package BCL.EasyPDF
using BCL.EasyPDF;
using System;

class Program
{
    static void Main()
    {
        var pdf = new PDFDocument();
        var htmlConverter = new HTMLConverter();
        htmlConverter.ConvertHTML("<h1>Hello World</h1>", pdf);
        pdf.Save("output.pdf");
        pdf.Close();
    }
}

// NuGet: Install-Package BCL.EasyPDF
using BCL.EasyPDF;
using System;

class Program
{
    static void Main()
    {
        var pdf = new PDFDocument();
        var htmlConverter = new HTMLConverter();
        htmlConverter.ConvertHTML("<h1>Hello World</h1>", pdf);
        pdf.Save("output.pdf");
        pdf.Close();
    }
}

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IronPDF Implementation:

// 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>");
        pdf.SaveAs("output.pdf");
    }
}

// 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>");
        pdf.SaveAs("output.pdf");
    }
}

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IronPDF eliminates the separate HTMLConverter class and manual Close() calls—resulting in cleaner, more maintainable code.

URL to PDF Conversion

Easy PDF SDK Implementation:

// NuGet: Install-Package BCL.EasyPDF
using BCL.EasyPDF;
using System;

class Program
{
    static void Main()
    {
        var pdf = new PDFDocument();
        var htmlConverter = new HTMLConverter();
        htmlConverter.ConvertURL("https://example.com", pdf);
        pdf.Save("webpage.pdf");
        pdf.Close();
    }
}

// NuGet: Install-Package BCL.EasyPDF
using BCL.EasyPDF;
using System;

class Program
{
    static void Main()
    {
        var pdf = new PDFDocument();
        var htmlConverter = new HTMLConverter();
        htmlConverter.ConvertURL("https://example.com", pdf);
        pdf.Save("webpage.pdf");
        pdf.Close();
    }
}

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IronPDF Implementation:

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

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

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

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

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Merging Multiple PDFs

Easy PDF SDK Implementation:

// NuGet: Install-Package BCL.EasyPDF
using BCL.EasyPDF;
using System;

class Program
{
    static void Main()
    {
        var pdf1 = new PDFDocument("document1.pdf");
        var pdf2 = new PDFDocument("document2.pdf");
        pdf1.Append(pdf2);
        pdf1.Save("merged.pdf");
        pdf1.Close();
        pdf2.Close();
    }
}

// NuGet: Install-Package BCL.EasyPDF
using BCL.EasyPDF;
using System;

class Program
{
    static void Main()
    {
        var pdf1 = new PDFDocument("document1.pdf");
        var pdf2 = new PDFDocument("document2.pdf");
        pdf1.Append(pdf2);
        pdf1.Save("merged.pdf");
        pdf1.Close();
        pdf2.Close();
    }
}

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IronPDF Implementation:

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

class Program
{
    static void Main()
    {
        var pdfs = new List<PdfDocument>
        {
            PdfDocument.FromFile("document1.pdf"),
            PdfDocument.FromFile("document2.pdf")
        };
        var merged = PdfDocument.Merge(pdfs);
        merged.SaveAs("merged.pdf");
    }
}

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

class Program
{
    static void Main()
    {
        var pdfs = new List<PdfDocument>
        {
            PdfDocument.FromFile("document1.pdf"),
            PdfDocument.FromFile("document2.pdf")
        };
        var merged = PdfDocument.Merge(pdfs);
        merged.SaveAs("merged.pdf");
    }
}

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IronPDF's static Merge method accepts multiple documents directly, eliminating the manual Append loop pattern.

Password Protection

IronPDF Implementation:

using IronPdf;

var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf("<h1>Confidential</h1>");

// Set security
pdf.SecuritySettings.UserPassword = "user123";
pdf.SecuritySettings.OwnerPassword = "owner456";
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.NoPrint;
pdf.SecuritySettings.AllowUserCopyPasteContent = false;
pdf.SecuritySettings.AllowUserEdits = PdfEditSecurity.NoEdit;

pdf.SaveAs("protected.pdf");

using IronPdf;

var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf("<h1>Confidential</h1>");

// Set security
pdf.SecuritySettings.UserPassword = "user123";
pdf.SecuritySettings.OwnerPassword = "owner456";
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.NoPrint;
pdf.SecuritySettings.AllowUserCopyPasteContent = false;
pdf.SecuritySettings.AllowUserEdits = PdfEditSecurity.NoEdit;

pdf.SaveAs("protected.pdf");

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Headers and Footers

Easy PDF SDK doesn't have native header/footer support—headers and footers must be included in the source HTML. IronPDF provides dedicated functionality:

using IronPdf;

var renderer = new ChromePdfRenderer();

renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter
{
    HtmlFragment = @"
        <div style='text-align:center; font-size:12px; font-family:Arial;'>
            Company Name - Confidential
        </div>",
    DrawDividerLine = true,
    MaxHeight = 30
};

renderer.RenderingOptions.HtmlFooter = new HtmlHeaderFooter
{
    HtmlFragment = @"
        <div style='text-align:center; font-size:10px;'>
            Page {page} of {total-pages}
        </div>",
    DrawDividerLine = true,
    MaxHeight = 25
};

var pdf = renderer.RenderHtmlAsPdf("<h1>Content</h1>");
pdf.SaveAs("with_headers.pdf");

using IronPdf;

var renderer = new ChromePdfRenderer();

renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter
{
    HtmlFragment = @"
        <div style='text-align:center; font-size:12px; font-family:Arial;'>
            Company Name - Confidential
        </div>",
    DrawDividerLine = true,
    MaxHeight = 30
};

renderer.RenderingOptions.HtmlFooter = new HtmlHeaderFooter
{
    HtmlFragment = @"
        <div style='text-align:center; font-size:10px;'>
            Page {page} of {total-pages}
        </div>",
    DrawDividerLine = true,
    MaxHeight = 25
};

var pdf = renderer.RenderHtmlAsPdf("<h1>Content</h1>");
pdf.SaveAs("with_headers.pdf");

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For more options, see the headers and footers documentation.

Async PDF Generation

Easy PDF SDK uses callback-based async patterns. IronPDF supports native async/await:

Easy PDF SDK Implementation:

using BCL.easyPDF;

Printer printer = new Printer();

// BCL uses callback-based async
printer.BeginPrintToFile(
    "https://example.com",
    "output.pdf",
    OnPrintComplete,
    OnPrintError
);

Console.ReadLine();
printer.Dispose();

using BCL.easyPDF;

Printer printer = new Printer();

// BCL uses callback-based async
printer.BeginPrintToFile(
    "https://example.com",
    "output.pdf",
    OnPrintComplete,
    OnPrintError
);

Console.ReadLine();
printer.Dispose();

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IronPDF Implementation:

using IronPdf;
using System.Threading.Tasks;

class Program
{
    static async Task Main()
    {
        var renderer = new ChromePdfRenderer();

        // Native async/await
        var pdf = await renderer.RenderUrlAsPdfAsync("https://example.com");
        await pdf.SaveAsAsync("output.pdf");

        Console.WriteLine("PDF created: output.pdf");
    }
}

using IronPdf;
using System.Threading.Tasks;

class Program
{
    static async Task Main()
    {
        var renderer = new ChromePdfRenderer();

        // Native async/await
        var pdf = await renderer.RenderUrlAsPdfAsync("https://example.com");
        await pdf.SaveAsAsync("output.pdf");

        Console.WriteLine("PDF created: output.pdf");
    }
}

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Critical Migration Notes

Page Index Change

Easy PDF SDK uses 1-based indexing. IronPDF uses 0-based indexing:

// Easy PDF SDK: 1-based
doc.ExtractPages(1, 5);

// IronPDF: 0-based
pdf.CopyPages(0, 4);

// Easy PDF SDK: 1-based
doc.ExtractPages(1, 5);

// IronPDF: 0-based
pdf.CopyPages(0, 4);

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Timeout in Milliseconds

Easy PDF SDK uses seconds for timeout values. IronPDF uses milliseconds:

// Easy PDF SDK: seconds
config.TimeOut = 120;

// IronPDF: milliseconds
renderer.RenderingOptions.Timeout = 120000;

// Easy PDF SDK: seconds
config.TimeOut = 120;

// IronPDF: milliseconds
renderer.RenderingOptions.Timeout = 120000;

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ASP.NET Core Integration

Easy PDF SDK struggles in web contexts due to interactive session requirements.

IronPDF Pattern:

[ApiController]
[Route("[controller]")]
public class PdfController : ControllerBase
{
    [HttpGet("generate")]
    public IActionResult GeneratePdf()
    {
        var renderer = new ChromePdfRenderer();
        var pdf = renderer.RenderHtmlAsPdf("<h1>Report</h1>");

        return File(pdf.BinaryData, "application/pdf", "report.pdf");
    }

    [HttpGet("generate-async")]
    public async Task<IActionResult> GeneratePdfAsync()
    {
        var renderer = new ChromePdfRenderer();
        var pdf = await renderer.RenderHtmlAsPdfAsync("<h1>Report</h1>");

        return File(pdf.Stream, "application/pdf", "report.pdf");
    }
}

[ApiController]
[Route("[controller]")]
public class PdfController : ControllerBase
{
    [HttpGet("generate")]
    public IActionResult GeneratePdf()
    {
        var renderer = new ChromePdfRenderer();
        var pdf = renderer.RenderHtmlAsPdf("<h1>Report</h1>");

        return File(pdf.BinaryData, "application/pdf", "report.pdf");
    }

    [HttpGet("generate-async")]
    public async Task<IActionResult> GeneratePdfAsync()
    {
        var renderer = new ChromePdfRenderer();
        var pdf = await renderer.RenderHtmlAsPdfAsync("<h1>Report</h1>");

        return File(pdf.Stream, "application/pdf", "report.pdf");
    }
}

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Docker Deployment

Easy PDF SDK cannot run in Docker containers—it requires Windows containers, Microsoft Office, virtual printer drivers, and interactive desktop sessions. This is fundamentally incompatible with containerization.

IronPDF Docker Configuration:

FROM mcr.microsoft.com/dotnet/aspnet:8.0

# Install Chromium dependencies
RUN apt-get update && apt-get install -y \
    libc6 libgdiplus libx11-6 libxcomposite1 \
    libxdamage1 libxrandr2 libxss1 libxtst6 \
    libnss3 libatk-bridge2.0-0 libgtk-3-0 \
    libgbm1 libasound2 fonts-liberation \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app
COPY . .
ENTRYPOINT ["dotnet", "MyApp.dll"]

Troubleshooting Common Migration Issues

Issue: Printer Not Found

Symptom: Cannot find printer: BCL easyPDF Printer

Solution: IronPDF doesn't need printer drivers:

// Just use the renderer directly
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf(html);

// Just use the renderer directly
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf(html);

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Issue: COM Interop Errors

Symptom: DLL error loading or RCW errors

Solution: Remove all COM references and use IronPDF's managed API.

Issue: Timeout on Server

Symptom: PDF generation hangs on web server

Solution: IronPDF runs headless without interactive sessions:

var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.Timeout = 60000; // Reliable timeout
var pdf = renderer.RenderHtmlAsPdf(html);

var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.Timeout = 60000; // Reliable timeout
var pdf = renderer.RenderHtmlAsPdf(html);

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Issue: Background Not Printing

Symptom: CSS backgrounds missing

Solution: Enable background printing:

renderer.RenderingOptions.PrintHtmlBackgrounds = true;

renderer.RenderingOptions.PrintHtmlBackgrounds = true;

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Post-Migration Checklist

After completing the code migration, verify the following:

Verify PDF output quality with IronPDF's Chromium engine
Test all edge cases with complex HTML/CSS
Validate server deployment works without interactive sessions
Test Docker/container deployment
Remove BCL EasyPDF installer from deployment
Remove Office installation from servers (no longer needed)
Update CI/CD pipelines with new NuGet package

Future-Proofing Your PDF Infrastructure

With .NET 10 on the horizon and C# 14 introducing new language features, choosing a cross-platform PDF library ensures compatibility with evolving deployment models. IronPDF's support for Linux, Docker, and cloud-native architectures means your migration investment pays dividends as projects extend into 2025 and 2026—without the Windows-only constraints of Easy PDF SDK.

Additional Resources

Migrating from Easy PDF SDK to IronPDF eliminates virtual printer dependencies, COM interop issues, and Windows-only constraints. The transition to Chromium-based rendering delivers superior CSS3 and JavaScript support while enabling deployment to Docker, Kubernetes, and cloud environments that were previously impossible with Easy PDF SDK's legacy architecture.

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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.

30일 무료 체험 시작하기

How to Migrate from Easy PDF SDK to IronPDF in C#

Common Easy PDF SDK Deployment Issues

Easy PDF SDK vs. IronPDF: Key Differences

Platform Limitations

Pre-Migration Preparation

Prerequisites

Audit Easy PDF SDK Usage

Breaking Changes to Anticipate

Step-by-Step Migration Process

Step 1: Remove Easy PDF SDK

Step 2: Install IronPDF

Step 3: Update Namespace References

Complete API Migration Reference

Core Class Mapping

PDF Creation Methods

PDF Manipulation Methods

Configuration Options

Code Migration Examples

HTML String to PDF

URL to PDF Conversion

Merging Multiple PDFs

Password Protection

Headers and Footers

Async PDF Generation

Critical Migration Notes

Page Index Change

Timeout in Milliseconds

ASP.NET Core Integration

Docker Deployment

Troubleshooting Common Migration Issues

Issue: Printer Not Found

Issue: COM Interop Errors

Issue: Timeout on Server

Issue: Background Not Printing

Post-Migration Checklist

Future-Proofing Your PDF Infrastructure

Additional Resources

관련 기사

How to Migrate from ZetPDF to IronPDF in C#

How to Migrate from Scryber.Core to IronPDF in C#

How to Migrate from XFINIUM.PDF to IronPDF in C#

다음 단계: 30일 무료 체험 시작하기

다음 단계: 30일 무료 체험 시작하기

전 세계 수백만 엔지니어들이 신뢰하는 제품입니다.