MIGRATION GUIDES

How to Migrate from PDFmyURL to IronPDF in C#

Updated:May 18, 2026

PDFmyURL is a cloud-based API service designed for converting URLs and HTML content to PDF documents. The service processes all conversions on external servers, providing a straightforward integration path that requires minimal local infrastructure. However, this cloud-dependent architecture creates significant concerns for production applications that handle sensitive data, require offline capability, or need to avoid ongoing subscription costs.

This guide provides a complete migration path from PDFmyURL to IronPDF, with step-by-step instructions, code comparisons, and practical examples for professional .NET developers evaluating this transition.

Why Migrate from PDFmyURL

PDFmyURL's cloud processing model introduces several challenges that development teams must consider:

Privacy & Data Security: Every document you convert travels to and through PDFmyURL's servers—sensitive contracts, financial reports, and personal data are all processed externally.

Ongoing Subscription Costs: Plans start at $20/month (Starter, 500 PDFs), $40/month (Professional, 2,000 PDFs), and $70/month (Advanced, 5,000 PDFs), with no ownership at any tier. This subscription model means continuous expenditure regardless of usage patterns.

Internet Dependency: Every conversion requires network connectivity. Applications cannot process PDFs offline or during network outages.

Rate Limits & Throttling: API calls can be throttled during peak usage, potentially impacting application performance.

Service Availability: Your application depends on a third-party service being online and functional.

Vendor Lock-in: API changes can break your integration without notice, requiring reactive code updates.

IronPDF vs PDFmyURL: Feature Comparison

Understanding the architectural differences helps technical decision-makers evaluate the migration investment:

Aspect	PDFmyURL	IronPDF
Processing Location	External servers	Local (your server)
Type	API Wrapper	.NET Library
Authentication	API key per request	One-time license key
Network Required	Every conversion	Only initial setup
Pricing Model	Monthly subscription ($20–$70+)	Perpetual license available
Rate Limits	Yes (plan-dependent)	None
Data Privacy	Data sent externally	Data stays local
HTML/CSS/JS Support	Server-side rendering (W3C compliant)	Full Chromium engine
Async Pattern	HTTP request (network-bound)	Sync and async options
PDF Manipulation	Limited	Full suite (merge, split, edit)
Use Case	Low-volume applications	High-volume and enterprise

Quick Start: PDFmyURL to IronPDF Migration

The migration can begin immediately with these foundational steps.

Step 1: Install IronPDF

PDFmyURL has no NuGet package — the service is a REST API, and the optional PDFmyURL.NET.dll component ships as a direct DLL download (not on nuget.org). Most integrations call the API with WebClient / HttpClient, so the migration is mainly about code, not package references. If you used the PDFmyURL.NET.dll assembly, remove the reference from your project after migrating.

# Install IronPDF
dotnet add package IronPdf

# Install IronPDF
dotnet add package IronPdf

SHELL

Step 2: Update Namespaces

Replace PDFmyURL imports with IronPDF:

// Before: PDFmyURL — either plain HttpClient/WebClient against pdfmyurl.com/api,
// or the optional .NET component:
using PDFmyURLdotNET;          // only if you used PDFmyURL.NET.dll
using System.Net;               // WebClient / HttpClient

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

// Before: PDFmyURL — either plain HttpClient/WebClient against pdfmyurl.com/api,
// or the optional .NET component:
using PDFmyURLdotNET;          // only if you used PDFmyURL.NET.dll
using System.Net;               // WebClient / HttpClient

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

Imports PDFmyURLdotNET ' only if you used PDFmyURL.NET.dll
Imports System.Net ' WebClient / HttpClient

' After: IronPDF
Imports IronPdf
Imports IronPdf.Rendering

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Step 3: Initialize License

Add license initialization at application startup:

IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";

IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";

IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"

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Code Migration Examples

Converting URLs to PDF

The URL-to-PDF operation demonstrates the fundamental API differences between PDFmyURL and IronPDF.

PDFmyURL Approach:

// PDFmyURL REST API — no NuGet SDK. Docs: https://pdfmyurl.com/html-to-pdf-api
using System;
using System.Net;

class Example
{
    static void Main()
    {
        string license = "your-license-key";
        string url = "https://example.com";

        try
        {
            using (var client = new WebClient())
            {
                client.QueryString.Add("license", license);
                client.QueryString.Add("url", url);
                // PDF binary is returned in the response body
                client.DownloadFile("https://pdfmyurl.com/api", "output.pdf");
            }
        }
        catch (WebException ex)
        {
            Console.WriteLine("Error: " + ex.Message);
        }
    }
}

// PDFmyURL REST API — no NuGet SDK. Docs: https://pdfmyurl.com/html-to-pdf-api
using System;
using System.Net;

class Example
{
    static void Main()
    {
        string license = "your-license-key";
        string url = "https://example.com";

        try
        {
            using (var client = new WebClient())
            {
                client.QueryString.Add("license", license);
                client.QueryString.Add("url", url);
                // PDF binary is returned in the response body
                client.DownloadFile("https://pdfmyurl.com/api", "output.pdf");
            }
        }
        catch (WebException ex)
        {
            Console.WriteLine("Error: " + ex.Message);
        }
    }
}

Imports System
Imports System.Net

Class Example
    Shared Sub Main()
        Dim license As String = "your-license-key"
        Dim url As String = "https://example.com"

        Try
            Using client As New WebClient()
                client.QueryString.Add("license", license)
                client.QueryString.Add("url", url)
                ' PDF binary is returned in the response body
                client.DownloadFile("https://pdfmyurl.com/api", "output.pdf")
            End Using
        Catch ex As WebException
            Console.WriteLine("Error: " & ex.Message)
        End Try
    End Sub
End Class

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IronPDF Approach:

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

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

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

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

Imports IronPdf
Imports System

Class Example
    Shared Sub Main()
        Dim renderer As New ChromePdfRenderer()
        Dim pdf = renderer.RenderUrlAsPdf("https://example.com")
        pdf.SaveAs("output.pdf")
    End Sub
End Class

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PDFmyURL requires opening an HTTP connection to https://pdfmyurl.com/api on every conversion, attaching the license token plus the target url as query (or form) parameters, and writing the response body to disk. Errors surface as WebException based on the HTTP status code.

IronPDF simplifies this to three lines: create a ChromePdfRenderer, call RenderUrlAsPdf(), and use the built-in SaveAs() method. No per-request credentials are needed — the license is set once at application startup.

For advanced URL-to-PDF scenarios, see the URL to PDF documentation.

Converting HTML Strings to PDF

HTML string conversion shows the pattern differences clearly.

PDFmyURL Approach:

// PDFmyURL REST API — no NuGet SDK. Send the raw HTML in the `html` parameter.
// Docs: https://pdfmyurl.com/html-to-pdf-api
using System;
using System.Collections.Specialized;
using System.IO;
using System.Net;

class Example
{
    static void Main()
    {
        string license = "your-license-key";
        string html = "<html><body><h1>Hello World</h1></body></html>";

        try
        {
            using (var client = new WebClient())
            {
                var values = new NameValueCollection
                {
                    { "license", license },
                    { "html", html }
                };
                // POST form-encoded; response body is the PDF binary
                byte[] pdfBytes = client.UploadValues("https://pdfmyurl.com/api", "POST", values);
                File.WriteAllBytes("output.pdf", pdfBytes);
            }
        }
        catch (WebException ex)
        {
            Console.WriteLine("Error: " + ex.Message);
        }
    }
}

// PDFmyURL REST API — no NuGet SDK. Send the raw HTML in the `html` parameter.
// Docs: https://pdfmyurl.com/html-to-pdf-api
using System;
using System.Collections.Specialized;
using System.IO;
using System.Net;

class Example
{
    static void Main()
    {
        string license = "your-license-key";
        string html = "<html><body><h1>Hello World</h1></body></html>";

        try
        {
            using (var client = new WebClient())
            {
                var values = new NameValueCollection
                {
                    { "license", license },
                    { "html", html }
                };
                // POST form-encoded; response body is the PDF binary
                byte[] pdfBytes = client.UploadValues("https://pdfmyurl.com/api", "POST", values);
                File.WriteAllBytes("output.pdf", pdfBytes);
            }
        }
        catch (WebException ex)
        {
            Console.WriteLine("Error: " + ex.Message);
        }
    }
}

Imports System
Imports System.Collections.Specialized
Imports System.IO
Imports System.Net

Class Example
    Shared Sub Main()
        Dim license As String = "your-license-key"
        Dim html As String = "<html><body><h1>Hello World</h1></body></html>"

        Try
            Using client As New WebClient()
                Dim values As New NameValueCollection() From {
                    {"license", license},
                    {"html", html}
                }
                ' POST form-encoded; response body is the PDF binary
                Dim pdfBytes As Byte() = client.UploadValues("https://pdfmyurl.com/api", "POST", values)
                File.WriteAllBytes("output.pdf", pdfBytes)
            End Using
        Catch ex As WebException
            Console.WriteLine("Error: " & ex.Message)
        End Try
    End Sub
End Class

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IronPDF Approach:

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

class Example
{
    static void Main()
    {
        var renderer = new ChromePdfRenderer();
        string html = "<html><body><h1>Hello World</h1></body></html>";
        var pdf = renderer.RenderHtmlAsPdf(html);
        pdf.SaveAs("output.pdf");
    }
}

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

class Example
{
    static void Main()
    {
        var renderer = new ChromePdfRenderer();
        string html = "<html><body><h1>Hello World</h1></body></html>";
        var pdf = renderer.RenderHtmlAsPdf(html);
        pdf.SaveAs("output.pdf");
    }
}

Imports IronPdf
Imports System

Class Example
    Shared Sub Main()
        Dim renderer = New ChromePdfRenderer()
        Dim html As String = "<html><body><h1>Hello World</h1></body></html>"
        Dim pdf = renderer.RenderHtmlAsPdf(html)
        pdf.SaveAs("output.pdf")
    End Sub
End Class

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PDFmyURL POSTs the raw HTML in the html form parameter to its API endpoint and returns the rendered PDF as the response body. IronPDF's RenderHtmlAsPdf() processes everything locally using the Chromium rendering engine.

Explore the HTML to PDF conversion guide for additional options.

HTML File Conversion with Page Settings

Configuring paper size, orientation, and margins requires different approaches in each library.

PDFmyURL Approach:

// PDFmyURL REST API — no NuGet SDK. Page settings are sent as query/form parameters.
// Parameter reference: https://pdfmyurl.com/html-to-pdf-api
using System;
using System.Collections.Specialized;
using System.IO;
using System.Net;

class Example
{
    static void Main()
    {
        string license = "your-license-key";
        string html = File.ReadAllText("input.html");

        try
        {
            using (var client = new WebClient())
            {
                var values = new NameValueCollection
                {
                    { "license",     license },
                    { "html",        html },
                    { "page_size",   "A4" },
                    { "orientation", "landscape" },
                    { "top",         "10" },
                    { "unit",        "mm" }
                };
                byte[] pdfBytes = client.UploadValues("https://pdfmyurl.com/api", "POST", values);
                File.WriteAllBytes("output.pdf", pdfBytes);
            }
        }
        catch (WebException ex)
        {
            Console.WriteLine("Error: " + ex.Message);
        }
    }
}

// PDFmyURL REST API — no NuGet SDK. Page settings are sent as query/form parameters.
// Parameter reference: https://pdfmyurl.com/html-to-pdf-api
using System;
using System.Collections.Specialized;
using System.IO;
using System.Net;

class Example
{
    static void Main()
    {
        string license = "your-license-key";
        string html = File.ReadAllText("input.html");

        try
        {
            using (var client = new WebClient())
            {
                var values = new NameValueCollection
                {
                    { "license",     license },
                    { "html",        html },
                    { "page_size",   "A4" },
                    { "orientation", "landscape" },
                    { "top",         "10" },
                    { "unit",        "mm" }
                };
                byte[] pdfBytes = client.UploadValues("https://pdfmyurl.com/api", "POST", values);
                File.WriteAllBytes("output.pdf", pdfBytes);
            }
        }
        catch (WebException ex)
        {
            Console.WriteLine("Error: " + ex.Message);
        }
    }
}

Imports System
Imports System.Collections.Specialized
Imports System.IO
Imports System.Net

Class Example
    Shared Sub Main()
        Dim license As String = "your-license-key"
        Dim html As String = File.ReadAllText("input.html")

        Try
            Using client As New WebClient()
                Dim values As New NameValueCollection From {
                    {"license", license},
                    {"html", html},
                    {"page_size", "A4"},
                    {"orientation", "landscape"},
                    {"top", "10"},
                    {"unit", "mm"}
                }
                Dim pdfBytes As Byte() = client.UploadValues("https://pdfmyurl.com/api", "POST", values)
                File.WriteAllBytes("output.pdf", pdfBytes)
            End Using
        Catch ex As WebException
            Console.WriteLine("Error: " & ex.Message)
        End Try
    End Sub
End Class

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IronPDF Approach:

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

class Example
{
    static void Main()
    {
        var renderer = new ChromePdfRenderer();
        renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
        renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Landscape;
        renderer.RenderingOptions.MarginTop = 10;
        var pdf = renderer.RenderHtmlFileAsPdf("input.html");
        pdf.SaveAs("output.pdf");
    }
}

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

class Example
{
    static void Main()
    {
        var renderer = new ChromePdfRenderer();
        renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
        renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Landscape;
        renderer.RenderingOptions.MarginTop = 10;
        var pdf = renderer.RenderHtmlFileAsPdf("input.html");
        pdf.SaveAs("output.pdf");
    }
}

Imports IronPdf
Imports IronPdf.Rendering
Imports System

Class Example
    Shared Sub Main()
        Dim renderer As New ChromePdfRenderer()
        renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
        renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Landscape
        renderer.RenderingOptions.MarginTop = 10
        Dim pdf = renderer.RenderHtmlFileAsPdf("input.html")
        pdf.SaveAs("output.pdf")
    End Sub
End Class

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PDFmyURL configures pages by adding form parameters like page_size=A4, orientation=landscape, and the margin fields (top, bottom, left, right) alongside a unit (e.g. mm, in). IronPDF provides strongly-typed properties through RenderingOptions with enums like PdfPaperSize.A4 and integer values for margins in millimeters.

PDFmyURL API to IronPDF Mapping Reference

This mapping accelerates migration by showing direct API equivalents:

Core Classes / Entry Points

PDFmyURL	IronPDF
`WebClient` / `HttpClient` posting to `https://pdfmyurl.com/api`	`ChromePdfRenderer`
`PDFmyURLdotNET.PDFmyURL` (optional .NET component from `PDFmyURL.NET.dll`)	`ChromePdfRenderer`
Form / query parameters	`ChromePdfRenderOptions`
HTTP response body bytes	`PdfDocument`

Methods

PDFmyURL	IronPDF
`WebClient.DownloadFile(".../api?license=...&url=...", file)`	`renderer.RenderUrlAsPdf(url).SaveAs(file)`
POST with `html=` parameter	`renderer.RenderHtmlAsPdf(html)`
`File.ReadAllText("input.html")` then POST `html=`	`renderer.RenderHtmlFileAsPdf(path)`
`pdf.ConvertURL(url, file)` (PDFmyURL.NET.dll)	`renderer.RenderUrlAsPdf(url).SaveAs(file)`
`pdf.ConvertHTML(html, file)` (PDFmyURL.NET.dll)	`renderer.RenderHtmlAsPdf(html).SaveAs(file)`
HTTP response body (`byte[]`)	`pdf.BinaryData`
HTTP response stream	`new MemoryStream(pdf.BinaryData)`

Configuration Options

PDFmyURL settings are passed as form/query parameters on the HTTP request. The table below maps real PDFmyURL parameter names to IronPDF's RenderingOptions.

PDFmyURL parameter	IronPDF (RenderingOptions)
`page_size=A4`	`.PaperSize = PdfPaperSize.A4`
`page_size=Letter`	`.PaperSize = PdfPaperSize.Letter`
`orientation=landscape`	`.PaperOrientation = PdfPaperOrientation.Landscape`
`orientation=portrait`	`.PaperOrientation = PdfPaperOrientation.Portrait`
`top=10&unit=mm`	`.MarginTop = 10`
`bottom=10&unit=mm`	`.MarginBottom = 10`
`left=10&unit=mm`	`.MarginLeft = 10`
`right=10&unit=mm`	`.MarginRight = 10`
`header=<html>`	`.HtmlHeader = new HtmlHeaderFooter { HtmlFragment = html }`
`footer=<html>`	`.HtmlFooter = new HtmlHeaderFooter { HtmlFragment = html }`
`javascript_time=500`	`.RenderDelay = 500`
`no_javascript=true`	`.EnableJavaScript = false`
`css_media_type=print`	`.CssMediaType = PdfCssMediaType.Print`

Authentication Comparison

PDFmyURL	IronPDF
`license=<key>` query/form parameter on every API request	`IronPdf.License.LicenseKey = "LICENSE-KEY"`
License token per request	One-time at startup
Required for every call	Set once globally

Common Migration Issues and Solutions

Issue 1: License Token vs License Key

PDFmyURL: Requires the license token on every API request.

Solution: Set the IronPDF license once at application startup:

// PDFmyURL: license token per request
client.QueryString.Add("license", "your-license-key");

// IronPDF: One-time license at startup
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";
// Set once, typically in Program.cs or Startup.cs

// PDFmyURL: license token per request
client.QueryString.Add("license", "your-license-key");

// IronPDF: One-time license at startup
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";
// Set once, typically in Program.cs or Startup.cs

' PDFmyURL: license token per request
client.QueryString.Add("license", "your-license-key")

' IronPDF: One-time license at startup
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"
' Set once, typically in Program.vb or Startup.vb

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Issue 2: Placeholder Syntax in Headers/Footers

PDFmyURL: Uses tokens such as [page] and [topage] inside the header / footer form parameters (consult the live API reference for the canonical token list).

Solution: Update to IronPDF's placeholder format inside HtmlHeaderFooter.HtmlFragment:

// PDFmyURL: "Page [page] of [topage]"
// IronPDF: "Page {page} of {total-pages}"

// PDFmyURL: "Page [page] of [topage]"
// IronPDF: "Page {page} of {total-pages}"

' PDFmyURL: "Page [page] of [topage]"
' IronPDF: "Page {page} of {total-pages}"

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Issue 3: Async Patterns

PDFmyURL: Is a remote HTTP call; typically invoked with HttpClient.PostAsync against pdfmyurl.com/api.

Solution: IronPDF is in-process and synchronous by default; wrap for async if needed:

// PDFmyURL: HTTP request to the public endpoint
var response = await http.PostAsync("https://pdfmyurl.com/api", form);

// IronPDF: Sync by default, wrap for async
var pdf = await Task.Run(() => renderer.RenderUrlAsPdf(url));

// PDFmyURL: HTTP request to the public endpoint
var response = await http.PostAsync("https://pdfmyurl.com/api", form);

// IronPDF: Sync by default, wrap for async
var pdf = await Task.Run(() => renderer.RenderUrlAsPdf(url));

Imports System.Net.Http
Imports System.Threading.Tasks

' PDFmyURL: HTTP request to the public endpoint
Dim response = Await http.PostAsync("https://pdfmyurl.com/api", form)

' IronPDF: Sync by default, wrap for async
Dim pdf = Await Task.Run(Function() renderer.RenderUrlAsPdf(url))

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Issue 4: Error Handling

PDFmyURL: HTTP-level failures (invalid license, rate limit, network error, service unavailable) surface as WebException / non-success status codes.

Solution: Update catch blocks for IronPDF's typed exceptions:

// PDFmyURL: WebException from the HTTP call
catch (WebException e) { ... }

// IronPDF: Typed exceptions
catch (IronPdf.Exceptions.IronPdfRenderingException e) { ... }

// PDFmyURL: WebException from the HTTP call
catch (WebException e) { ... }

// IronPDF: Typed exceptions
catch (IronPdf.Exceptions.IronPdfRenderingException e) { ... }

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Issue 5: Configuration Pattern

PDFmyURL: Configuration is passed as form/query parameters on the HTTP request.

Solution: Use strongly-typed RenderingOptions properties:

// PDFmyURL: form/query parameters
values.Add("page_size", "A4");
values.Add("orientation", "landscape");

// IronPDF: Properties with enums
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Landscape;

// PDFmyURL: form/query parameters
values.Add("page_size", "A4");
values.Add("orientation", "landscape");

// IronPDF: Properties with enums
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Landscape;

' PDFmyURL: form/query parameters
values.Add("page_size", "A4")
values.Add("orientation", "landscape")

' IronPDF: Properties with enums
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Landscape

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PDFmyURL Migration Checklist

Pre-Migration Tasks

Audit your codebase to identify all PDFmyURL usage:

# Find PDFmyURL endpoint and component usage
grep -r "pdfmyurl.com/api\|PDFmyURLdotNET\|new PDFmyURL(" --include="*.cs" .

# Find license-token references
grep -r "license=\|licensekey" --include="*.cs" --include="*.json" --include="*.config" .

# Find placeholder patterns to migrate
grep -r "\[page\]\|\[topage\]" --include="*.cs" .

# Find PDFmyURL endpoint and component usage
grep -r "pdfmyurl.com/api\|PDFmyURLdotNET\|new PDFmyURL(" --include="*.cs" .

# Find license-token references
grep -r "license=\|licensekey" --include="*.cs" --include="*.json" --include="*.config" .

# Find placeholder patterns to migrate
grep -r "\[page\]\|\[topage\]" --include="*.cs" .

SHELL

Document current configuration parameters used (page_size, orientation, margins, header/footer, etc.). Plan license key storage using environment variables.

Code Update Tasks

Remove the optional PDFmyURL.NET.dll reference if you used it (no NuGet package exists to uninstall)
Install the IronPDF NuGet package
Update all namespace imports
Replace the per-request license token with IronPdf.License.LicenseKey
Convert form/query parameters to RenderingOptions properties
Update placeholder syntax in headers/footers (e.g. [page] → {page}, [topage] → {total-pages})
Update error handling code (WebException → typed IronPDF exceptions)
Add IronPDF license initialization at startup

Post-Migration Testing

After migration, verify these aspects:

Test PDF output quality matches expectations
Verify async patterns work correctly
Compare rendering fidelity with previous output
Test all template variations render correctly
Validate page settings (size, orientation, margins)
Install Linux dependencies if deploying to Linux servers

Key Benefits of Migrating to IronPDF

Moving from PDFmyURL to IronPDF provides several critical advantages:

Complete Privacy: Documents never leave your server. All processing happens locally, eliminating data security concerns for sensitive content.

One-Time Cost: Perpetual license option eliminates recurring subscription fees. No more monthly payments regardless of usage volume.

Offline Capability: Works without internet after initial setup. Network outages don't impact PDF generation.

No Rate Limits: Process unlimited documents without throttling concerns.

Lower Latency: No network overhead means faster conversions, especially for high-volume applications.

Full Control: You control the processing environment, not a third-party service.

Modern Chromium Engine: Full CSS3 and JavaScript support with the same rendering engine that powers Chrome browser.

Active Development: IronPDF's regular updates ensure compatibility with current modern .NET versions.

Please notePDFmyURL is a registered trademark of its respective owner. This site is not affiliated with, endorsed by, or sponsored by PDFmyURL. All product names, logos, and brands are property of their respective owners. Comparisons are for informational purposes only and reflect publicly available information at the time of writing.

Curtis Chau

Chat with engineering team now

Technical Writer

Curtis Chau holds a Bachelor’s degree in Computer Science (Carleton University) and specializes in front-end development with expertise in Node.js, TypeScript, JavaScript, and React. Passionate about crafting intuitive and aesthetically pleasing user interfaces, Curtis enjoys working with modern frameworks and creating well-structured, visually appealing manuals.

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Updated May 18, 2026

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How to Migrate from PDFmyURL to IronPDF in C#

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IronPDF vs PDFmyURL: Feature Comparison

Quick Start: PDFmyURL to IronPDF Migration

Step 1: Install IronPDF

Step 2: Update Namespaces

Step 3: Initialize License

Code Migration Examples

Converting URLs to PDF

Converting HTML Strings to PDF

HTML File Conversion with Page Settings

PDFmyURL API to IronPDF Mapping Reference

Core Classes / Entry Points

Methods

Configuration Options

Authentication Comparison

Common Migration Issues and Solutions

Issue 1: License Token vs License Key

Issue 2: Placeholder Syntax in Headers/Footers

Issue 3: Async Patterns

Issue 4: Error Handling

Issue 5: Configuration Pattern

PDFmyURL Migration Checklist

Pre-Migration Tasks

Code Update Tasks

Post-Migration Testing

Key Benefits of Migrating to IronPDF

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How to Migrate from PDFmyURL to IronPDF in C#

Why Migrate from PDFmyURL

IronPDF vs PDFmyURL: Feature Comparison

Quick Start: PDFmyURL to IronPDF Migration

Step 1: Install IronPDF

Step 2: Update Namespaces

Step 3: Initialize License

Code Migration Examples

Converting URLs to PDF

Converting HTML Strings to PDF

HTML File Conversion with Page Settings

PDFmyURL API to IronPDF Mapping Reference

Core Classes / Entry Points

Methods

Configuration Options

Authentication Comparison

Common Migration Issues and Solutions

Issue 1: License Token vs License Key

Issue 2: Placeholder Syntax in Headers/Footers

Issue 3: Async Patterns

Issue 4: Error Handling

Issue 5: Configuration Pattern

PDFmyURL Migration Checklist

Pre-Migration Tasks

Code Update Tasks

Post-Migration Testing

Key Benefits of Migrating to IronPDF

Related Articles

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