C# PDF Kütüphanesi

Explore IronPDF Ücretsiz Denemeye Başlayın

HTML'den PDF'e

using IronPdf;

// Disable local disk access or cross-origin requests
Installation.EnableWebSecurity = true;

// Instantiate Renderer
var renderer = new ChromePdfRenderer();

// Create a PDF from a HTML string using C#
var pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1>");

// Export to a file or Stream
pdf.SaveAs("output.pdf");

// Advanced Example with HTML Assets
// Load external html assets: Images, CSS and JavaScript.
// An optional BasePath 'C:\site\assets\' is set as the file location to load assets from
var myAdvancedPdf = renderer.RenderHtmlAsPdf("<img src='icons/iron.png'>", @"C:\site\assets\");
myAdvancedPdf.SaveAs("html-with-assets.pdf");

using IronPdf;

// Disable local disk access or cross-origin requests
Installation.EnableWebSecurity = true;

// Instantiate Renderer
var renderer = new ChromePdfRenderer();

// Create a PDF from a HTML string using C#
var pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1>");

// Export to a file or Stream
pdf.SaveAs("output.pdf");

// Advanced Example with HTML Assets
// Load external html assets: Images, CSS and JavaScript.
// An optional BasePath 'C:\site\assets\' is set as the file location to load assets from
var myAdvancedPdf = renderer.RenderHtmlAsPdf("<img src='icons/iron.png'>", @"C:\site\assets\");
myAdvancedPdf.SaveAs("html-with-assets.pdf");

PM >Install-Package IronPdf

Install-Package IronPdf

VIDEOLAR

C#'ta PDF'lerden Gömülü Metin ve Görüntüleri Çıkarmak

Curtis Chau

Updated: 19 Temmuz 2026

Api2pdf, PDF oluşturmak için bulut tabanlı bir hizmet sunar, ancak hassas belgeleri harici sunuculara göndermek, güvenlik riskleri, uyumluluk sorunları ve zamanla biriken sürekli maliyetlere yol açabilir. Bu rehber, Api2pdf'den IronPDF'e tamamen kendi altyapınızda belge işleme sağlayan, veri aktarım endişelerini ortadan kaldırarak dönüşüm başına maliyetleri tek seferlik bir yatırım haline dönüştüren yerel bir .NET PDF kütüphanesine geçiş yolunu ayrıntılı olarak sunar.

Neden Api2pdf'den Taşınmayı Düşünmelisiniz?

Api2pdf, bulut tabanlı PDF oluşturma kolaylığı sağlarken, bir dizi faktör geliştirme ekiplerini PDF oluşturma ihtiyaçları için yerel alternatifler aramaya teşvik eder.

Güvenlik ve Uyumluluk Endişeleri

Api2pdf, hassas HTML ve belgelerinizin işlenmesi için üçüncü taraf sunuculara gönderildiği bulut tabanlı bir hizmet olarak çalışır. Bu, düzenlenmiş verileri işleyen kuruluşlar için önemli endişeler yaratır.

Risk	Api2pdf	IronPDF
Veri İletimi	Tüm içerik harici sunuculara gönderilir	Altyapınızda yerel olarak işler
GDPR Uyumluluğu	Veri yargı yetkilerini geçer	Veri asla ortamınızı terk etmez
HIPAA Uyumluluğu	PHI harici olarak aktarılır	PHI sistemlerinizde kalır
SOC 2	Üçüncü taraf bağımlılığı	Veri işleme üzerinde tam kontrol
PCI DSS	Kart verileri potansiyel olarak açığa çıkar	Dışa aktarım yok

Zamanla Biriken Maliyetler

Api2pdf, metreli kullanım (bant genişliği ve hesaplama saniyesi) süresiz $1/ay baz fiyat artı metrelendirilmiş kullanım ücreti olarak ücretlendirilirken,IronPDF bir kez süresiz lisans sunar. Güncel rakamları api2pdf.com/pricing adresinden doğrulayın:

Bileşen	Api2pdf	IronPDF
Taban	$1/ay	Tek seferlik lisans
Bant genişliği	$0,001 MB başına	geçerli değil (yerel)
Hesapla	$0,00019551 saniye başına	geçerli değil (yerel)
Hacim ölçeklendirme	Kullanım ve dosya büyüklüğüyle orantılı	Flat (Lite ~$999, Plus ~$1,499, Professional ~$2,399)

Daha ağır iş yükleri (büyük dosyalar, JS yoğun sayfalar, uzun rendere süreleri) api2pdf faturasının yukarı kaymasına neden olur;IronPDF maliyeti lisanslandıktan sonra sabittir.

Performans ve Kullanılabilirlik

Api2pdf, her PDF oluşturma isteğine 2-5 saniye ek gecikme ekleyen ağ döngüleri gerektirir. IronPDF, yerel olarak 100-500 milisaniye içinde işler. Ek olarak,IronPDF tamamen çevrimdışı ve izole ortamlarda çalışır—dış hizmet kullanılabilirliğine güvenemeyen uygulamalar için kritik.

##Api2pdfvs. IronPDF: Temel Farklar

Aspekt	Api2pdf	IronPDF
Veri İşleme	Üçüncü taraf bulut sunucularına gönderilir	Altyapınızda yerel olarak işlenir
Fiyatlandırma	$1/ay baz + hesaplı ($0,001/MB bant genişliği, $0,00019551/sn hesapla)	Tek seferlik süresiz lisans
Gecikme	2-5 saniye (ağ gidiş-geliş)	100-500ms (yerel işleme)
Çevrimdışı	Mevcut değil	Tamamen çevrimdışı çalışır
Kurulum	API anahtarı + HTTP istemcisi	Simple NuGet package
Uyumluluk	GDPR/HIPAA endişeleri (veri ağ dışına çıkar)	Tam uyumluluk kontrolü

Adım Adım Geçiş Süreci

1. Adım: NuGet Paketlerini Güncelleyin

Api2pdf paketini kaldırın ve IronPDF'i yükleyin:

# Remove Api2pdf
dotnet remove package Api2Pdf

# Install IronPDF
dotnet add package IronPdf

# Remove Api2pdf
dotnet remove package Api2Pdf

# Install IronPDF
dotnet add package IronPdf

SHELL

Veya Paket Yöneticisi Konsolu aracılığıyla:

Uninstall-Package Api2Pdf
Install-Package IronPdf

Uninstall-Package Api2Pdf
Install-Package IronPdf

PowerShell

Adım 2: Ad Alanı Referanslarını Güncelleyin

Api2pdf ad alanlarınıIronPDF ile değiştirin:

// Remove these
using Api2Pdf;

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

// Remove these
using Api2Pdf;

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

Imports IronPdf
Imports IronPdf.Rendering

Imports IronPdf
Imports IronPdf.Rendering

Adım 3: Lisans Anahtarını Yapılandırın

Uygulama başlatıldığında IronPDF lisans anahtarını ayarlayın:

// Set once at application startup
IronPdf.License.LicenseKey = "YOUR-IRONPDF-LICENSE-KEY";

// Or configure via appsettings.json:
// { "IronPdf.LicenseKey": "YOUR-IRONPDF-LICENSE-KEY" }

// Set once at application startup
IronPdf.License.LicenseKey = "YOUR-IRONPDF-LICENSE-KEY";

// Or configure via appsettings.json:
// { "IronPdf.LicenseKey": "YOUR-IRONPDF-LICENSE-KEY" }

' Set once at application startup
IronPdf.License.LicenseKey = "YOUR-IRONPDF-LICENSE-KEY"

' Or configure via appsettings.json:
' { "IronPdf.LicenseKey": "YOUR-IRONPDF-LICENSE-KEY" }

' Set once at application startup
IronPdf.License.LicenseKey = "YOUR-IRONPDF-LICENSE-KEY"

' Or configure via appsettings.json:
' { "IronPdf.LicenseKey": "YOUR-IRONPDF-LICENSE-KEY" }

Adım 4: API Anahtarı Yapılandırmasını Kaldırın

IronPDF yerel olarak çalışır ve API anahtarları gerektirmez:

// Remove thisApi2pdfpattern
var client = new Api2Pdf("API_KEY");

// Just create the renderer directly
var renderer = new ChromePdfRenderer();

// Remove thisApi2pdfpattern
var client = new Api2Pdf("API_KEY");

// Just create the renderer directly
var renderer = new ChromePdfRenderer();

Tam API Geçiş Referansı

Temel Sınıf Eşlemeleri

Api2pdf Sınıfı	IronPDF Eşdeğeri
`Api2Pdf` (istemci)	`ChromePdfRenderer`
`Api2PdfResult`	`PdfDocument`
`ChromeHtmlToPdfOptions`	`ChromePdfRenderOptions`

Metot Haritalama

Api2pdf Yöntemi	IronPDF Yöntemi
`client.Chrome.HtmlToPdfAsync(new ChromeHtmlToPdfRequest { Html = html })`	`renderer.RenderHtmlAsPdf(html)`
`client.Chrome.UrlToPdfAsync(new ChromeUrlToPdfRequest { Url = url })`	`renderer.RenderUrlAsPdf(url)`
`result.FileUrl` (indirme bağlantısı)	`pdf.SaveAs(path)`
`result.GetFileBytes()`	`pdf.BinaryData`
`client.PdfSharp.MergePdfs(new PdfMergeRequest { Urls = urls })`	`PdfDocument.Merge(pdfs)`
`client.PdfSharp.SetPassword(new PdfPasswordRequest { Url, OwnerPassword })`	`pdf.SecuritySettings.OwnerPassword`

İşleme Seçenekleri Eşleşmesi

Api2pdf Seçeneği	IronPDF Seçeneği
`Landscape = true`	`RenderingOptions.PaperOrientation = Landscape`
`PreferCSSPageSize = true` / `Format`	`RenderingOptions.PaperSize = PdfPaperSize.A4`
`PrintBackground = true`	`RenderingOptions.PrintHtmlBackgrounds = true`
`MarginTop`, vb.	`RenderingOptions.MarginTop`, vb.
`Delay = 5000`	`RenderingOptions.WaitFor.RenderDelay(5000)`

Kod Göç Örnekleri

HTML'den PDF'ye Dönüşüm

En yaygınApi2pdfişlemi, bulut API çağrılarından yerel işleme temel değişimi gösterir.

Api2pdf Uygulaması:

// NuGet: Install-Package Api2Pdf
using System;
using System.Threading.Tasks;
using Api2Pdf;

class Program
{
    static async Task Main(string[] args)
    {
        var client = new Api2Pdf("your-api-key");
        var result = await client.Chrome.HtmlToPdfAsync(new ChromeHtmlToPdfRequest
        {
            Html = "<h1>Hello World</h1>"
        });
        Console.WriteLine(result.FileUrl);
    }
}

// NuGet: Install-Package Api2Pdf
using System;
using System.Threading.Tasks;
using Api2Pdf;

class Program
{
    static async Task Main(string[] args)
    {
        var client = new Api2Pdf("your-api-key");
        var result = await client.Chrome.HtmlToPdfAsync(new ChromeHtmlToPdfRequest
        {
            Html = "<h1>Hello World</h1>"
        });
        Console.WriteLine(result.FileUrl);
    }
}

Imports System
Imports System.Threading.Tasks
Imports Api2Pdf

Module Program
    Async Function Main(args As String()) As Task
        Dim client = New Api2Pdf("your-api-key")
        Dim result = Await client.Chrome.HtmlToPdfAsync(New ChromeHtmlToPdfRequest With {
            .Html = "<h1>Hello World</h1>"
        })
        Console.WriteLine(result.FileUrl)
    End Function
End Module

Imports System
Imports System.Threading.Tasks
Imports Api2Pdf

Module Program
    Async Function Main(args As String()) As Task
        Dim client = New Api2Pdf("your-api-key")
        Dim result = Await client.Chrome.HtmlToPdfAsync(New ChromeHtmlToPdfRequest With {
            .Html = "<h1>Hello World</h1>"
        })
        Console.WriteLine(result.FileUrl)
    End Function
End Module

IronPDF Uygulaması:

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

class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();
        var pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1>");
        pdf.SaveAs("output.pdf");
        Console.WriteLine("PDF created successfully");
    }
}

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

class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();
        var pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1>");
        pdf.SaveAs("output.pdf");
        Console.WriteLine("PDF created successfully");
    }
}

Imports System
Imports IronPdf

Class Program
    Shared Sub Main(ByVal args As String())
        Dim renderer = New ChromePdfRenderer()
        Dim pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1>")
        pdf.SaveAs("output.pdf")
        Console.WriteLine("PDF created successfully")
    End Sub
End Class

Imports System
Imports IronPdf

Class Program
    Shared Sub Main(ByVal args As String())
        Dim renderer = New ChromePdfRenderer()
        Dim pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1>")
        pdf.SaveAs("output.pdf")
        Console.WriteLine("PDF created successfully")
    End Sub
End Class

IronPDF, ağ döngüsünü, API anahtarı yönetimini ve Api2pdf'in URL tabanlı yanıt deseninin gerektirdiği ayrı indirme adımını ortadan kaldırır.

URL'den PDF'ye Dönüşüm

Api2pdf Uygulaması:

// NuGet: Install-Package Api2Pdf
using System;
using System.Threading.Tasks;
using Api2Pdf;

class Program
{
    static async Task Main(string[] args)
    {
        var client = new Api2Pdf("your-api-key");
        var result = await client.Chrome.UrlToPdfAsync(new ChromeUrlToPdfRequest
        {
            Url = "https://www.example.com"
        });
        Console.WriteLine(result.FileUrl);
    }
}

// NuGet: Install-Package Api2Pdf
using System;
using System.Threading.Tasks;
using Api2Pdf;

class Program
{
    static async Task Main(string[] args)
    {
        var client = new Api2Pdf("your-api-key");
        var result = await client.Chrome.UrlToPdfAsync(new ChromeUrlToPdfRequest
        {
            Url = "https://www.example.com"
        });
        Console.WriteLine(result.FileUrl);
    }
}

Imports System
Imports System.Threading.Tasks
Imports Api2Pdf

Module Program
    Async Function Main(args As String()) As Task
        Dim client = New Api2Pdf("your-api-key")
        Dim result = Await client.Chrome.UrlToPdfAsync(New ChromeUrlToPdfRequest With {
            .Url = "https://www.example.com"
        })
        Console.WriteLine(result.FileUrl)
    End Function
End Module

Imports System
Imports System.Threading.Tasks
Imports Api2Pdf

Module Program
    Async Function Main(args As String()) As Task
        Dim client = New Api2Pdf("your-api-key")
        Dim result = Await client.Chrome.UrlToPdfAsync(New ChromeUrlToPdfRequest With {
            .Url = "https://www.example.com"
        })
        Console.WriteLine(result.FileUrl)
    End Function
End Module

IronPDF Uygulaması:

// NuGet: Install-Package IronPdf
using System;
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");
        Console.WriteLine("PDF created from URL successfully");
    }
}

// NuGet: Install-Package IronPdf
using System;
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");
        Console.WriteLine("PDF created from URL successfully");
    }
}

Imports System
Imports IronPdf

Module Program
    Sub Main(args As String())
        Dim renderer = New ChromePdfRenderer()
        Dim pdf = renderer.RenderUrlAsPdf("https://www.example.com")
        pdf.SaveAs("webpage.pdf")
        Console.WriteLine("PDF created from URL successfully")
    End Sub
End Module

Imports System
Imports IronPdf

Module Program
    Sub Main(args As String())
        Dim renderer = New ChromePdfRenderer()
        Dim pdf = renderer.RenderUrlAsPdf("https://www.example.com")
        pdf.SaveAs("webpage.pdf")
        Console.WriteLine("PDF created from URL successfully")
    End Sub
End Module

Seçeneklerle HTML Dosyasını PDF'ye Dönüştürme

Api2pdf Uygulaması:

// NuGet: Install-Package Api2Pdf
using System;
using System.IO;
using System.Threading.Tasks;
using Api2Pdf;

class Program
{
    static async Task Main(string[] args)
    {
        var client = new Api2Pdf("your-api-key");
        string html = File.ReadAllText("input.html");
        var result = await client.Chrome.HtmlToPdfAsync(new ChromeHtmlToPdfRequest
        {
            Html = html,
            Options = new ChromeHtmlToPdfOptions
            {
                Landscape = true,
                PrintBackground = true
            }
        });
        Console.WriteLine(result.FileUrl);
    }
}

// NuGet: Install-Package Api2Pdf
using System;
using System.IO;
using System.Threading.Tasks;
using Api2Pdf;

class Program
{
    static async Task Main(string[] args)
    {
        var client = new Api2Pdf("your-api-key");
        string html = File.ReadAllText("input.html");
        var result = await client.Chrome.HtmlToPdfAsync(new ChromeHtmlToPdfRequest
        {
            Html = html,
            Options = new ChromeHtmlToPdfOptions
            {
                Landscape = true,
                PrintBackground = true
            }
        });
        Console.WriteLine(result.FileUrl);
    }
}

Imports System
Imports System.IO
Imports System.Threading.Tasks
Imports Api2Pdf

Module Program
    Async Function Main(args As String()) As Task
        Dim client = New Api2Pdf("your-api-key")
        Dim html As String = File.ReadAllText("input.html")
        Dim result = Await client.Chrome.HtmlToPdfAsync(New ChromeHtmlToPdfRequest With {
            .Html = html,
            .Options = New ChromeHtmlToPdfOptions With {
                .Landscape = True,
                .PrintBackground = True
            }
        })
        Console.WriteLine(result.FileUrl)
    End Function
End Module

Imports System
Imports System.IO
Imports System.Threading.Tasks
Imports Api2Pdf

Module Program
    Async Function Main(args As String()) As Task
        Dim client = New Api2Pdf("your-api-key")
        Dim html As String = File.ReadAllText("input.html")
        Dim result = Await client.Chrome.HtmlToPdfAsync(New ChromeHtmlToPdfRequest With {
            .Html = html,
            .Options = New ChromeHtmlToPdfOptions With {
                .Landscape = True,
                .PrintBackground = True
            }
        })
        Console.WriteLine(result.FileUrl)
    End Function
End Module

IronPDF Uygulaması:

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

class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();
        renderer.RenderingOptions.PaperOrientation = IronPdf.Rendering.PdfPaperOrientation.Landscape;
        renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print;
        string html = File.ReadAllText("input.html");
        var pdf = renderer.RenderHtmlAsPdf(html);
        pdf.SaveAs("output.pdf");
        Console.WriteLine("PDF created with options successfully");
    }
}

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

class Program
{
    static void Main(string[] args)
    {
        var renderer = new ChromePdfRenderer();
        renderer.RenderingOptions.PaperOrientation = IronPdf.Rendering.PdfPaperOrientation.Landscape;
        renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print;
        string html = File.ReadAllText("input.html");
        var pdf = renderer.RenderHtmlAsPdf(html);
        pdf.SaveAs("output.pdf");
        Console.WriteLine("PDF created with options successfully");
    }
}

Imports System
Imports System.IO
Imports IronPdf

Module Program
    Sub Main(args As String())
        Dim renderer As New ChromePdfRenderer()
        renderer.RenderingOptions.PaperOrientation = IronPdf.Rendering.PdfPaperOrientation.Landscape
        renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print
        Dim html As String = File.ReadAllText("input.html")
        Dim pdf = renderer.RenderHtmlAsPdf(html)
        pdf.SaveAs("output.pdf")
        Console.WriteLine("PDF created with options successfully")
    End Sub
End Module

Imports System
Imports System.IO
Imports IronPdf

Module Program
    Sub Main(args As String())
        Dim renderer As New ChromePdfRenderer()
        renderer.RenderingOptions.PaperOrientation = IronPdf.Rendering.PdfPaperOrientation.Landscape
        renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print
        Dim html As String = File.ReadAllText("input.html")
        Dim pdf = renderer.RenderHtmlAsPdf(html)
        pdf.SaveAs("output.pdf")
        Console.WriteLine("PDF created with options successfully")
    End Sub
End Module

IronPDF, işleme seçeneklerini doğrudan işleyici nesnesinde yapılandırır, bunları her bir API çağrısına ayrı bir seçenekler parametresi olarak iletmek yerine.

Birden Fazla PDF'yi Birleştirme

Api2pdf Uygulaması:

using Api2Pdf;

var client = new Api2Pdf("YOUR_API_KEY");

var pdfUrls = new List<string>
{
    "https://example.com/pdf1.pdf",
    "https://example.com/pdf2.pdf",
    "https://example.com/pdf3.pdf"
};

var request = new PdfMergeRequest { Urls = pdfUrls };
var result = await client.PdfSharp.MergePdfsAsync(request);

if (result.Success)
{
    // Download merged PDF from result.FileUrl
}

using Api2Pdf;

var client = new Api2Pdf("YOUR_API_KEY");

var pdfUrls = new List<string>
{
    "https://example.com/pdf1.pdf",
    "https://example.com/pdf2.pdf",
    "https://example.com/pdf3.pdf"
};

var request = new PdfMergeRequest { Urls = pdfUrls };
var result = await client.PdfSharp.MergePdfsAsync(request);

if (result.Success)
{
    // Download merged PDF from result.FileUrl
}

Imports Api2Pdf

Dim client As New Api2Pdf("YOUR_API_KEY")

Dim pdfUrls As New List(Of String) From {
    "https://example.com/pdf1.pdf",
    "https://example.com/pdf2.pdf",
    "https://example.com/pdf3.pdf"
}

Dim request As New PdfMergeRequest With {.Urls = pdfUrls}
Dim result = Await client.PdfSharp.MergePdfsAsync(request)

If result.Success Then
    ' Download merged PDF from result.FileUrl
End If

Imports Api2Pdf

Dim client As New Api2Pdf("YOUR_API_KEY")

Dim pdfUrls As New List(Of String) From {
    "https://example.com/pdf1.pdf",
    "https://example.com/pdf2.pdf",
    "https://example.com/pdf3.pdf"
}

Dim request As New PdfMergeRequest With {.Urls = pdfUrls}
Dim result = Await client.PdfSharp.MergePdfsAsync(request)

If result.Success Then
    ' Download merged PDF from result.FileUrl
End If

IronPDF Uygulaması:

using IronPdf;

// Load PDFs from files
var pdf1 = PdfDocument.FromFile("document1.pdf");
var pdf2 = PdfDocument.FromFile("document2.pdf");
var pdf3 = PdfDocument.FromFile("document3.pdf");

// Merge all PDFs
var merged = PdfDocument.Merge(pdf1, pdf2, pdf3);
merged.SaveAs("merged.pdf");

using IronPdf;

// Load PDFs from files
var pdf1 = PdfDocument.FromFile("document1.pdf");
var pdf2 = PdfDocument.FromFile("document2.pdf");
var pdf3 = PdfDocument.FromFile("document3.pdf");

// Merge all PDFs
var merged = PdfDocument.Merge(pdf1, pdf2, pdf3);
merged.SaveAs("merged.pdf");

Imports IronPdf

' Load PDFs from files
Dim pdf1 = PdfDocument.FromFile("document1.pdf")
Dim pdf2 = PdfDocument.FromFile("document2.pdf")
Dim pdf3 = PdfDocument.FromFile("document3.pdf")

' Merge all PDFs
Dim merged = PdfDocument.Merge(pdf1, pdf2, pdf3)
merged.SaveAs("merged.pdf")

Imports IronPdf

' Load PDFs from files
Dim pdf1 = PdfDocument.FromFile("document1.pdf")
Dim pdf2 = PdfDocument.FromFile("document2.pdf")
Dim pdf3 = PdfDocument.FromFile("document3.pdf")

' Merge all PDFs
Dim merged = PdfDocument.Merge(pdf1, pdf2, pdf3)
merged.SaveAs("merged.pdf")

IronPDF, URL tabanlı iş akışını ortadan kaldırarak, belgeleri doğrudan kabul eden statik Merge yöntemine sahiptir.

Şifre Koruması Altındaki PDF'ler

Api2pdf Uygulaması:

using Api2Pdf;

var client = new Api2Pdf("YOUR_API_KEY");

// Generate PDF first
var pdfResult = await client.Chrome.HtmlToPdfAsync(new ChromeHtmlToPdfRequest
{
    Html = "<h1>Confidential</h1>"
});

// Then add password protection in a second round-trip
var protectedResult = await client.PdfSharp.SetPasswordAsync(new PdfPasswordRequest
{
    Url = pdfResult.FileUrl,
    OwnerPassword = "secretpassword"
});

using Api2Pdf;

var client = new Api2Pdf("YOUR_API_KEY");

// Generate PDF first
var pdfResult = await client.Chrome.HtmlToPdfAsync(new ChromeHtmlToPdfRequest
{
    Html = "<h1>Confidential</h1>"
});

// Then add password protection in a second round-trip
var protectedResult = await client.PdfSharp.SetPasswordAsync(new PdfPasswordRequest
{
    Url = pdfResult.FileUrl,
    OwnerPassword = "secretpassword"
});

Imports Api2Pdf

Dim client = New Api2Pdf("YOUR_API_KEY")

' Generate PDF first
Dim pdfResult = Await client.Chrome.HtmlToPdfAsync(New ChromeHtmlToPdfRequest With {
    .Html = "<h1>Confidential</h1>"
})

' Then add password protection in a second round-trip
Dim protectedResult = Await client.PdfSharp.SetPasswordAsync(New PdfPasswordRequest With {
    .Url = pdfResult.FileUrl,
    .OwnerPassword = "secretpassword"
})

Imports Api2Pdf

Dim client = New Api2Pdf("YOUR_API_KEY")

' Generate PDF first
Dim pdfResult = Await client.Chrome.HtmlToPdfAsync(New ChromeHtmlToPdfRequest With {
    .Html = "<h1>Confidential</h1>"
})

' Then add password protection in a second round-trip
Dim protectedResult = Await client.PdfSharp.SetPasswordAsync(New PdfPasswordRequest With {
    .Url = pdfResult.FileUrl,
    .OwnerPassword = "secretpassword"
})

IronPDF Uygulaması:

using IronPdf;

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

// Set security in one step
pdf.SecuritySettings.OwnerPassword = "owner123";
pdf.SecuritySettings.UserPassword = "user123";
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 in one step
pdf.SecuritySettings.OwnerPassword = "owner123";
pdf.SecuritySettings.UserPassword = "user123";
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.NoPrint;
pdf.SecuritySettings.AllowUserCopyPasteContent = false;
pdf.SecuritySettings.AllowUserEdits = PdfEditSecurity.NoEdit;

pdf.SaveAs("protected.pdf");

Imports IronPdf

Dim renderer As New ChromePdfRenderer()
Dim pdf = renderer.RenderHtmlAsPdf("<h1>Confidential</h1>")

' Set security in one step
pdf.SecuritySettings.OwnerPassword = "owner123"
pdf.SecuritySettings.UserPassword = "user123"
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.NoPrint
pdf.SecuritySettings.AllowUserCopyPasteContent = False
pdf.SecuritySettings.AllowUserEdits = PdfEditSecurity.NoEdit

pdf.SaveAs("protected.pdf")

Imports IronPdf

Dim renderer As New ChromePdfRenderer()
Dim pdf = renderer.RenderHtmlAsPdf("<h1>Confidential</h1>")

' Set security in one step
pdf.SecuritySettings.OwnerPassword = "owner123"
pdf.SecuritySettings.UserPassword = "user123"
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.NoPrint
pdf.SecuritySettings.AllowUserCopyPasteContent = False
pdf.SecuritySettings.AllowUserEdits = PdfEditSecurity.NoEdit

pdf.SaveAs("protected.pdf")

IronPDF, SecuritySettings özelliği aracılığıyla PDF izinleri üzerinde ayrıntılı kontrol sağlar.

Başlıklar ve Altbilgiler

Api2pdf Uygulaması:

using Api2Pdf;

var client = new Api2Pdf("YOUR_API_KEY");

var result = await client.Chrome.HtmlToPdfAsync(new ChromeHtmlToPdfRequest
{
    Html = html,
    Options = new ChromeHtmlToPdfOptions
    {
        DisplayHeaderFooter = true,
        HeaderTemplate = "<div style='font-size:10px'>Company Header</div>",
        FooterTemplate = "<div style='font-size:10px'>Page <span class='pageNumber'></span></div>"
    }
});

using Api2Pdf;

var client = new Api2Pdf("YOUR_API_KEY");

var result = await client.Chrome.HtmlToPdfAsync(new ChromeHtmlToPdfRequest
{
    Html = html,
    Options = new ChromeHtmlToPdfOptions
    {
        DisplayHeaderFooter = true,
        HeaderTemplate = "<div style='font-size:10px'>Company Header</div>",
        FooterTemplate = "<div style='font-size:10px'>Page <span class='pageNumber'></span></div>"
    }
});

Imports Api2Pdf

Dim client = New Api2Pdf("YOUR_API_KEY")

Dim result = Await client.Chrome.HtmlToPdfAsync(New ChromeHtmlToPdfRequest With {
    .Html = html,
    .Options = New ChromeHtmlToPdfOptions With {
        .DisplayHeaderFooter = True,
        .HeaderTemplate = "<div style='font-size:10px'>Company Header</div>",
        .FooterTemplate = "<div style='font-size:10px'>Page <span class='pageNumber'></span></div>"
    }
})

Imports Api2Pdf

Dim client = New Api2Pdf("YOUR_API_KEY")

Dim result = Await client.Chrome.HtmlToPdfAsync(New ChromeHtmlToPdfRequest With {
    .Html = html,
    .Options = New ChromeHtmlToPdfOptions With {
        .DisplayHeaderFooter = True,
        .HeaderTemplate = "<div style='font-size:10px'>Company Header</div>",
        .FooterTemplate = "<div style='font-size:10px'>Page <span class='pageNumber'></span></div>"
    }
})

IronPDF Uygulaması:

using IronPdf;

var renderer = new ChromePdfRenderer();

// HTML headers and footers with full styling
renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter
{
    HtmlFragment = "<div style='font-size:10px; text-align:center;'>Company Header</div>",
    DrawDividerLine = true
};

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

var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("with-headers.pdf");

using IronPdf;

var renderer = new ChromePdfRenderer();

// HTML headers and footers with full styling
renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter
{
    HtmlFragment = "<div style='font-size:10px; text-align:center;'>Company Header</div>",
    DrawDividerLine = true
};

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

var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("with-headers.pdf");

Imports IronPdf

Dim renderer As New ChromePdfRenderer()

' HTML headers and footers with full styling
renderer.RenderingOptions.HtmlHeader = New HtmlHeaderFooter With {
    .HtmlFragment = "<div style='font-size:10px; text-align:center;'>Company Header</div>",
    .DrawDividerLine = True
}

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

Dim pdf = renderer.RenderHtmlAsPdf(html)
pdf.SaveAs("with-headers.pdf")

Imports IronPdf

Dim renderer As New ChromePdfRenderer()

' HTML headers and footers with full styling
renderer.RenderingOptions.HtmlHeader = New HtmlHeaderFooter With {
    .HtmlFragment = "<div style='font-size:10px; text-align:center;'>Company Header</div>",
    .DrawDividerLine = True
}

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

Dim pdf = renderer.RenderHtmlAsPdf(html)
pdf.SaveAs("with-headers.pdf")

IronPDF, dinamik sayfa numaralandırma için {page} ve {total-pages} gibi yer tutucu belirteçleri destekler. Daha fazla seçenek için başlıklar ve altbilgiler belgelerine bakın.

ASP.NET Core Integration

Api2pdf'in asenkron HTTP deseni, IronPDF'in doğrudan PDF oluşturmasından önemli ölçüde farklıdır.

Api2pdf Deseni:

[ApiController]
public class PdfController : ControllerBase
{
    private readonly Api2Pdf _client;

    public PdfController()
    {
        _client = new Api2Pdf("YOUR_API_KEY");
    }

    [HttpGet("generate")]
    public async Task<IActionResult> GeneratePdf()
    {
        var result = await _client.Chrome.HtmlToPdfAsync(new ChromeHtmlToPdfRequest
        {
            Html = "<h1>Report</h1>"
        });

        if (!result.Success)
            return BadRequest(result.Error);

        // Redirect to download URL
        return Redirect(result.FileUrl);
    }
}

[ApiController]
public class PdfController : ControllerBase
{
    private readonly Api2Pdf _client;

    public PdfController()
    {
        _client = new Api2Pdf("YOUR_API_KEY");
    }

    [HttpGet("generate")]
    public async Task<IActionResult> GeneratePdf()
    {
        var result = await _client.Chrome.HtmlToPdfAsync(new ChromeHtmlToPdfRequest
        {
            Html = "<h1>Report</h1>"
        });

        if (!result.Success)
            return BadRequest(result.Error);

        // Redirect to download URL
        return Redirect(result.FileUrl);
    }
}

Imports Microsoft.AspNetCore.Mvc

<ApiController>
Public Class PdfController
    Inherits ControllerBase

    Private ReadOnly _client As Api2Pdf

    Public Sub New()
        _client = New Api2Pdf("YOUR_API_KEY")
    End Sub

    <HttpGet("generate")>
    Public Async Function GeneratePdf() As Task(Of IActionResult)
        Dim result = Await _client.Chrome.HtmlToPdfAsync(New ChromeHtmlToPdfRequest With {
            .Html = "<h1>Report</h1>"
        })

        If Not result.Success Then
            Return BadRequest(result.Error)
        End If

        ' Redirect to download URL
        Return Redirect(result.FileUrl)
    End Function
End Class

Imports Microsoft.AspNetCore.Mvc

<ApiController>
Public Class PdfController
    Inherits ControllerBase

    Private ReadOnly _client As Api2Pdf

    Public Sub New()
        _client = New Api2Pdf("YOUR_API_KEY")
    End Sub

    <HttpGet("generate")>
    Public Async Function GeneratePdf() As Task(Of IActionResult)
        Dim result = Await _client.Chrome.HtmlToPdfAsync(New ChromeHtmlToPdfRequest With {
            .Html = "<h1>Report</h1>"
        })

        If Not result.Success Then
            Return BadRequest(result.Error)
        End If

        ' Redirect to download URL
        Return Redirect(result.FileUrl)
    End Function
End Class

IronPDF Deseni:

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

        // Return PDF directly - no download step needed
        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.BinaryData, "application/pdf", "report.pdf");
    }
}

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

        // Return PDF directly - no download step needed
        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.BinaryData, "application/pdf", "report.pdf");
    }
}

Imports Microsoft.AspNetCore.Mvc

<ApiController>
Public Class PdfController
    Inherits ControllerBase

    <HttpGet("generate")>
    Public Function GeneratePdf() As IActionResult
        Dim renderer = New ChromePdfRenderer()
        Dim pdf = renderer.RenderHtmlAsPdf("<h1>Report</h1>")

        ' Return PDF directly - no download step needed
        Return File(pdf.BinaryData, "application/pdf", "report.pdf")
    End Function

    <HttpGet("generate-async")>
    Public Async Function GeneratePdfAsync() As Task(Of IActionResult)
        Dim renderer = New ChromePdfRenderer()
        Dim pdf = Await renderer.RenderHtmlAsPdfAsync("<h1>Report</h1>")

        Return File(pdf.BinaryData, "application/pdf", "report.pdf")
    End Function
End Class

Imports Microsoft.AspNetCore.Mvc

<ApiController>
Public Class PdfController
    Inherits ControllerBase

    <HttpGet("generate")>
    Public Function GeneratePdf() As IActionResult
        Dim renderer = New ChromePdfRenderer()
        Dim pdf = renderer.RenderHtmlAsPdf("<h1>Report</h1>")

        ' Return PDF directly - no download step needed
        Return File(pdf.BinaryData, "application/pdf", "report.pdf")
    End Function

    <HttpGet("generate-async")>
    Public Async Function GeneratePdfAsync() As Task(Of IActionResult)
        Dim renderer = New ChromePdfRenderer()
        Dim pdf = Await renderer.RenderHtmlAsPdfAsync("<h1>Report</h1>")

        Return File(pdf.BinaryData, "application/pdf", "report.pdf")
    End Function
End Class

IronPDF, yönlendirme yoluyla indirme desenini ortadan kaldırarak, PDF'yi doğrudan BinaryData veya Stream üzerinden döndürür.

Dependency Injection Yapılandırması

// Program.cs or Startup.cs
public void ConfigureServices(IServiceCollection services)
{
    services.AddScoped<IPdfService, IronPdfService>();
}

// IPdfService.cs
public interface IPdfService
{
    PdfDocument GenerateFromHtml(string html);
    Task<PdfDocument> GenerateFromHtmlAsync(string html);
}

// IronPdfService.cs
public class IronPdfService : IPdfService
{
    private readonly ChromePdfRenderer _renderer;

    public IronPdfService()
    {
        _renderer = new ChromePdfRenderer();
        _renderer.RenderingOptions.PrintHtmlBackgrounds = true;
        _renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
    }

    public PdfDocument GenerateFromHtml(string html) =>
        _renderer.RenderHtmlAsPdf(html);

    public Task<PdfDocument> GenerateFromHtmlAsync(string html) =>
        _renderer.RenderHtmlAsPdfAsync(html);
}

// Program.cs or Startup.cs
public void ConfigureServices(IServiceCollection services)
{
    services.AddScoped<IPdfService, IronPdfService>();
}

// IPdfService.cs
public interface IPdfService
{
    PdfDocument GenerateFromHtml(string html);
    Task<PdfDocument> GenerateFromHtmlAsync(string html);
}

// IronPdfService.cs
public class IronPdfService : IPdfService
{
    private readonly ChromePdfRenderer _renderer;

    public IronPdfService()
    {
        _renderer = new ChromePdfRenderer();
        _renderer.RenderingOptions.PrintHtmlBackgrounds = true;
        _renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
    }

    public PdfDocument GenerateFromHtml(string html) =>
        _renderer.RenderHtmlAsPdf(html);

    public Task<PdfDocument> GenerateFromHtmlAsync(string html) =>
        _renderer.RenderHtmlAsPdfAsync(html);
}

' Program.vb or Startup.vb
Public Sub ConfigureServices(services As IServiceCollection)
    services.AddScoped(Of IPdfService, IronPdfService)()
End Sub

' IPdfService.vb
Public Interface IPdfService
    Function GenerateFromHtml(html As String) As PdfDocument
    Function GenerateFromHtmlAsync(html As String) As Task(Of PdfDocument)
End Interface

' IronPdfService.vb
Public Class IronPdfService
    Implements IPdfService

    Private ReadOnly _renderer As ChromePdfRenderer

    Public Sub New()
        _renderer = New ChromePdfRenderer()
        _renderer.RenderingOptions.PrintHtmlBackgrounds = True
        _renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
    End Sub

    Public Function GenerateFromHtml(html As String) As PdfDocument Implements IPdfService.GenerateFromHtml
        Return _renderer.RenderHtmlAsPdf(html)
    End Function

    Public Function GenerateFromHtmlAsync(html As String) As Task(Of PdfDocument) Implements IPdfService.GenerateFromHtmlAsync
        Return _renderer.RenderHtmlAsPdfAsync(html)
    End Function
End Class

' Program.vb or Startup.vb
Public Sub ConfigureServices(services As IServiceCollection)
    services.AddScoped(Of IPdfService, IronPdfService)()
End Sub

' IPdfService.vb
Public Interface IPdfService
    Function GenerateFromHtml(html As String) As PdfDocument
    Function GenerateFromHtmlAsync(html As String) As Task(Of PdfDocument)
End Interface

' IronPdfService.vb
Public Class IronPdfService
    Implements IPdfService

    Private ReadOnly _renderer As ChromePdfRenderer

    Public Sub New()
        _renderer = New ChromePdfRenderer()
        _renderer.RenderingOptions.PrintHtmlBackgrounds = True
        _renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
    End Sub

    Public Function GenerateFromHtml(html As String) As PdfDocument Implements IPdfService.GenerateFromHtml
        Return _renderer.RenderHtmlAsPdf(html)
    End Function

    Public Function GenerateFromHtmlAsync(html As String) As Task(Of PdfDocument) Implements IPdfService.GenerateFromHtmlAsync
        Return _renderer.RenderHtmlAsPdfAsync(html)
    End Function
End Class

Hata Yönetimi Geçişi

Api2pdf, yanıt nesnesi kontrollerini kullanır. IronPDF, standart .NET istisnalarını kullanır.

Api2pdf Deseni:

var result = await client.Chrome.HtmlToPdfAsync(new ChromeHtmlToPdfRequest { Html = html });

if (!result.Success)
{
    Console.WriteLine($"Error: {result.Error}");
    return;
}

var result = await client.Chrome.HtmlToPdfAsync(new ChromeHtmlToPdfRequest { Html = html });

if (!result.Success)
{
    Console.WriteLine($"Error: {result.Error}");
    return;
}

Imports System

Dim result = Await client.Chrome.HtmlToPdfAsync(New ChromeHtmlToPdfRequest With {.Html = html})

If Not result.Success Then
    Console.WriteLine($"Error: {result.Error}")
    Return
End If

Imports System

Dim result = Await client.Chrome.HtmlToPdfAsync(New ChromeHtmlToPdfRequest With {.Html = html})

If Not result.Success Then
    Console.WriteLine($"Error: {result.Error}")
    Return
End If

IronPDF Deseni:

try
{
    var renderer = new ChromePdfRenderer();
    var pdf = renderer.RenderHtmlAsPdf(html);
    pdf.SaveAs("output.pdf");
}
catch (IronPdf.Exceptions.IronPdfLicenseException ex)
{
    Console.WriteLine($"License error: {ex.Message}");
}
catch (IronPdf.Exceptions.IronPdfRenderingException ex)
{
    Console.WriteLine($"Rendering error: {ex.Message}");
}
catch (Exception ex)
{
    Console.WriteLine($"Error: {ex.Message}");
}

try
{
    var renderer = new ChromePdfRenderer();
    var pdf = renderer.RenderHtmlAsPdf(html);
    pdf.SaveAs("output.pdf");
}
catch (IronPdf.Exceptions.IronPdfLicenseException ex)
{
    Console.WriteLine($"License error: {ex.Message}");
}
catch (IronPdf.Exceptions.IronPdfRenderingException ex)
{
    Console.WriteLine($"Rendering error: {ex.Message}");
}
catch (Exception ex)
{
    Console.WriteLine($"Error: {ex.Message}");
}

Imports IronPdf.Exceptions

Try
    Dim renderer = New ChromePdfRenderer()
    Dim pdf = renderer.RenderHtmlAsPdf(html)
    pdf.SaveAs("output.pdf")
Catch ex As IronPdfLicenseException
    Console.WriteLine($"License error: {ex.Message}")
Catch ex As IronPdfRenderingException
    Console.WriteLine($"Rendering error: {ex.Message}")
Catch ex As Exception
    Console.WriteLine($"Error: {ex.Message}")
End Try

Imports IronPdf.Exceptions

Try
    Dim renderer = New ChromePdfRenderer()
    Dim pdf = renderer.RenderHtmlAsPdf(html)
    pdf.SaveAs("output.pdf")
Catch ex As IronPdfLicenseException
    Console.WriteLine($"License error: {ex.Message}")
Catch ex As IronPdfRenderingException
    Console.WriteLine($"Rendering error: {ex.Message}")
Catch ex As Exception
    Console.WriteLine($"Error: {ex.Message}")
End Try

Performans Karşılaştırması

Metrik	Api2pdf	IronPDF
Basit HTML	2-5 saniye (ağ)	100-500ms (yerel)
Kompleks sayfa	5-10 saniye	500ms-2s
100'lük Toplu İşlem	Dakikalar (oran limitleri)	Saniyeler (paralel)
Çevrimdışı	Mevcut değil	Tamamen çalışır
Soğuk başlatma	None	~2s (ilk işleme)

Performans Optimizasyonu İpuçları

// 1. Reuse renderer instance
private static readonly ChromePdfRenderer SharedRenderer = new ChromePdfRenderer();

public PdfDocument GeneratePdf(string html)
{
    return SharedRenderer.RenderHtmlAsPdf(html);
}

// 2. Parallel generation
var tasks = htmlDocs.Select(html =>
    Task.Run(() => SharedRenderer.RenderHtmlAsPdf(html)));
var results = await Task.WhenAll(tasks);

// 3. Disable unnecessary features for speed
var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.EnableJavaScript = false; // If not needed
renderer.RenderingOptions.WaitFor.RenderDelay(0);   // No delay

// 1. Reuse renderer instance
private static readonly ChromePdfRenderer SharedRenderer = new ChromePdfRenderer();

public PdfDocument GeneratePdf(string html)
{
    return SharedRenderer.RenderHtmlAsPdf(html);
}

// 2. Parallel generation
var tasks = htmlDocs.Select(html =>
    Task.Run(() => SharedRenderer.RenderHtmlAsPdf(html)));
var results = await Task.WhenAll(tasks);

// 3. Disable unnecessary features for speed
var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.EnableJavaScript = false; // If not needed
renderer.RenderingOptions.WaitFor.RenderDelay(0);   // No delay

Imports System.Threading.Tasks

' 1. Reuse renderer instance
Private Shared ReadOnly SharedRenderer As New ChromePdfRenderer()

Public Function GeneratePdf(html As String) As PdfDocument
    Return SharedRenderer.RenderHtmlAsPdf(html)
End Function

' 2. Parallel generation
Dim tasks = htmlDocs.Select(Function(html) Task.Run(Function() SharedRenderer.RenderHtmlAsPdf(html)))
Dim results = Await Task.WhenAll(tasks)

' 3. Disable unnecessary features for speed
Dim renderer As New ChromePdfRenderer()
renderer.RenderingOptions.EnableJavaScript = False ' If not needed
renderer.RenderingOptions.WaitFor.RenderDelay(0) ' No delay

Imports System.Threading.Tasks

' 1. Reuse renderer instance
Private Shared ReadOnly SharedRenderer As New ChromePdfRenderer()

Public Function GeneratePdf(html As String) As PdfDocument
    Return SharedRenderer.RenderHtmlAsPdf(html)
End Function

' 2. Parallel generation
Dim tasks = htmlDocs.Select(Function(html) Task.Run(Function() SharedRenderer.RenderHtmlAsPdf(html)))
Dim results = Await Task.WhenAll(tasks)

' 3. Disable unnecessary features for speed
Dim renderer As New ChromePdfRenderer()
renderer.RenderingOptions.EnableJavaScript = False ' If not needed
renderer.RenderingOptions.WaitFor.RenderDelay(0) ' No delay

Yaygın Göç Sorunlarını Giderme

Sorun: PDF,Api2pdfÇıktısından Farklı Görünüyor

Api2pdf'in Başsız Chrome ayarlarını eşleştirin:

var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Print;
renderer.RenderingOptions.PrintHtmlBackgrounds = true;
renderer.RenderingOptions.ViewPortWidth = 1280;
renderer.RenderingOptions.EnableJavaScript = true;
renderer.RenderingOptions.WaitFor.RenderDelay(1000);

var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Print;
renderer.RenderingOptions.PrintHtmlBackgrounds = true;
renderer.RenderingOptions.ViewPortWidth = 1280;
renderer.RenderingOptions.EnableJavaScript = true;
renderer.RenderingOptions.WaitFor.RenderDelay(1000);

Dim renderer = New ChromePdfRenderer()
renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Print
renderer.RenderingOptions.PrintHtmlBackgrounds = True
renderer.RenderingOptions.ViewPortWidth = 1280
renderer.RenderingOptions.EnableJavaScript = True
renderer.RenderingOptions.WaitFor.RenderDelay(1000)

Dim renderer = New ChromePdfRenderer()
renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Print
renderer.RenderingOptions.PrintHtmlBackgrounds = True
renderer.RenderingOptions.ViewPortWidth = 1280
renderer.RenderingOptions.EnableJavaScript = True
renderer.RenderingOptions.WaitFor.RenderDelay(1000)

Sorun: Harici Kaynaklar Yüklenemiyor

Kaynak yükleme zaman aşımı yapılandırmasını ayarlayın:

var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.WaitFor.AllFontsLoaded(timeout: 10000);
renderer.RenderingOptions.WaitFor.NetworkIdle(timeout: 10000);

// Or use base URL for relative paths
var pdf = renderer.RenderHtmlAsPdf(html, baseUrl: "https://example.com/");

var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.WaitFor.AllFontsLoaded(timeout: 10000);
renderer.RenderingOptions.WaitFor.NetworkIdle(timeout: 10000);

// Or use base URL for relative paths
var pdf = renderer.RenderHtmlAsPdf(html, baseUrl: "https://example.com/");

Dim renderer = New ChromePdfRenderer()
renderer.RenderingOptions.WaitFor.AllFontsLoaded(timeout:=10000)
renderer.RenderingOptions.WaitFor.NetworkIdle(timeout:=10000)

' Or use base URL for relative paths
Dim pdf = renderer.RenderHtmlAsPdf(html, baseUrl:="https://example.com/")

Dim renderer = New ChromePdfRenderer()
renderer.RenderingOptions.WaitFor.AllFontsLoaded(timeout:=10000)
renderer.RenderingOptions.WaitFor.NetworkIdle(timeout:=10000)

' Or use base URL for relative paths
Dim pdf = renderer.RenderHtmlAsPdf(html, baseUrl:="https://example.com/")

Sorun: Büyük PDF Dosya Boyutları

Oluşturma sonrasında resimleri sıkıştırın:

renderer.RenderingOptions.ImageQuality = 80;

// Or compress after generation
pdf.CompressImages(quality: 75);
pdf.SaveAs("compressed.pdf");

renderer.RenderingOptions.ImageQuality = 80;

// Or compress after generation
pdf.CompressImages(quality: 75);
pdf.SaveAs("compressed.pdf");

renderer.RenderingOptions.ImageQuality = 80

' Or compress after generation
pdf.CompressImages(quality:=75)
pdf.SaveAs("compressed.pdf")

renderer.RenderingOptions.ImageQuality = 80

' Or compress after generation
pdf.CompressImages(quality:=75)
pdf.SaveAs("compressed.pdf")

Taşınma Sonrası Kontrollistesi

Kod taşımasını tamamladıktan sonra, aşağıdakileri doğrulayın:

PDF çıktı kalitesinin beklentilere uygun olmasını doğrulayın
Tüm kenar durumlarını test edin (büyük belgeler, özel karakterler)
Performans metriklerini doğrulayın (önemli bir iyileşme görmelisiniz)
Docker yapılandırmalarını güncelleyin mümkünse -Api2pdfportal hesabını ve API anahtarlarını kaldırın
İzlemeyi güncelleyin (artık API gecikme izleme gerekmez)
Ekibiniz için yeni kalıpları belgeleyin
CI/CD yapılarını güncelleyin

Ek Kaynaklar

Api2pdf'den IronPDF'e geçiş, PDF üretiminizi buluta bağımlı, dönüşüm başına maliyet modelinden yerel, tek seferlik yatırımlı hale dönüştürür. Hassas belgeleriniz kendi altyapınızda kalır, gecikme saniyelerden milisaniyelere düşer ve bu kritik uygulama yeteneği için satıcı bağımlılığını ortadan kaldırırsınız.

Lütfen dikkate alın: API2PDF ve PDFSharp, ilgili sahiplerinin tescilli ticari markalarıdır. Bu site, Api2Pdf veya empira Software GmbH ile bağlantılı değildir, onaylanmamış veya desteklenmemiştir. Tüm ürün adları, logolar ve markalar kendi sahiplerine aittir. Karşılaştırmalar, yalnızca bilgilendirme amaçlıdır ve yazı sırasında halka açık bilgilerle alakalı olarak yansıtılmaktadır.

Curtis Chau

Mühendislik ekibiyle şimdi sohbet edin

Teknik Yazar

Curtis Chau, Bilgisayar Bilimleri alanında Lisans Derecesine (Carleton Üniversitesi) sahip ve Node.js, TypeScript, JavaScript ve React konularında uzmanlaşmış ön uç geliştirmeyle ilgileniyor. Sezgisel ve estetik açıdan hoş kullanıcı arayüzleri oluşturma tutkunu, Curtis modern çerçevelerle çalışmayı ve iyi yapılandırılmış, görsel olarak çekici kılavuzlar oluşturmayı seviyor.

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