C#에서 ComPDFKit에서 IronPDF로 마이그레이션하는 방법

# Find allComPDFKitusages in your codebase
grep -r "using ComPDFKit" --include="*.cs" .
grep -r "CPDFDocument\|CPDFPage\|CPDFAnnotation" --include="*.cs" .

# Find NuGet package references
grep -r "ComPDFKit" --include="*.csproj" .

# RemoveComPDFKitpackages
dotnet remove package ComPDFKit.NetCore
dotnet remove package ComPDFKit.NetFramework

# Install IronPDF
dotnet add package IronPdf

// Remove these
using ComPDFKit.PDFDocument;
using ComPDFKit.PDFPage;
using ComPDFKit.PDFAnnotation;
using ComPDFKit.Import;

// Add this
using IronPdf;

Imports IronPdf

// Add at application startup (Program.cs or Global.asax)
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";

' Add at application startup (Program.vb or Global.asax)
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"

// NuGet: Install-Package ComPDFKit.NetCore
using ComPDFKit.PDFDocument;
using System;

class Program
{
    static void Main()
    {
        var document = CPDFDocument.CreateDocument();
        var page = document.InsertPage(0, 595, 842, "");

        //ComPDFKitrequires manual HTML rendering
        // NativeHTML to PDFnot directly supported
        var editor = page.GetEditor();
        editor.BeginEdit(CPDFEditType.EditText);
        editor.CreateTextWidget(new System.Drawing.RectangleF(50, 50, 500, 700), "HTML content here");
        editor.EndEdit();

        document.WriteToFilePath("output.pdf");
        document.Release();
    }
}

Imports ComPDFKit.PDFDocument
Imports System
Imports System.Drawing

Module Program
    Sub Main()
        Dim document = CPDFDocument.CreateDocument()
        Dim page = document.InsertPage(0, 595, 842, "")

        ' ComPDFKit requires manual HTML rendering
        ' Native HTML to PDF not directly supported
        Dim editor = page.GetEditor()
        editor.BeginEdit(CPDFEditType.EditText)
        editor.CreateTextWidget(New RectangleF(50, 50, 500, 700), "HTML content here")
        editor.EndEdit()

        document.WriteToFilePath("output.pdf")
        document.Release()
    End Sub
End Module

// 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><p>This is HTML content.</p>");
        pdf.SaveAs("output.pdf");
    }
}

Imports IronPdf
Imports System

Class Program
    Shared Sub Main()
        Dim renderer = New ChromePdfRenderer()
        Dim pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1><p>This is HTML content.</p>")
        pdf.SaveAs("output.pdf")
    End Sub
End Class

// NuGet: Install-Package ComPDFKit.NetCore
using ComPDFKit.PDFDocument;
using ComPDFKit.Import;
using System;

class Program
{
    static void Main()
    {
        var document1 = CPDFDocument.InitWithFilePath("file1.pdf");
        var document2 = CPDFDocument.InitWithFilePath("file2.pdf");

        // Import pages from document2 into document1
        document1.ImportPagesAtIndex(document2, "0-" + (document2.PageCount - 1), document1.PageCount);

        document1.WriteToFilePath("merged.pdf");
        document1.Release();
        document2.Release();
    }
}

Imports ComPDFKit.PDFDocument
Imports ComPDFKit.Import
Imports System

Module Program
    Sub Main()
        Dim document1 = CPDFDocument.InitWithFilePath("file1.pdf")
        Dim document2 = CPDFDocument.InitWithFilePath("file2.pdf")

        ' Import pages from document2 into document1
        document1.ImportPagesAtIndex(document2, "0-" & (document2.PageCount - 1), document1.PageCount)

        document1.WriteToFilePath("merged.pdf")
        document1.Release()
        document2.Release()
    End Sub
End Module

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

class Program
{
    static void Main()
    {
        var pdf1 = PdfDocument.FromFile("file1.pdf");
        var pdf2 = PdfDocument.FromFile("file2.pdf");

        var merged = PdfDocument.Merge(new List<PdfDocument> { pdf1, pdf2 });
        merged.SaveAs("merged.pdf");
    }
}

Imports IronPdf
Imports System
Imports System.Collections.Generic

Module Program
    Sub Main()
        Dim pdf1 = PdfDocument.FromFile("file1.pdf")
        Dim pdf2 = PdfDocument.FromFile("file2.pdf")

        Dim merged = PdfDocument.Merge(New List(Of PdfDocument) From {pdf1, pdf2})
        merged.SaveAs("merged.pdf")
    End Sub
End Module

// NuGet: Install-Package ComPDFKit.NetCore
using ComPDFKit.PDFDocument;
using ComPDFKit.PDFPage;
using System;
using System.Drawing;

class Program
{
    static void Main()
    {
        var document = CPDFDocument.InitWithFilePath("input.pdf");

        for (int i = 0; i < document.PageCount; i++)
        {
            var page = document.PageAtIndex(i);
            var editor = page.GetEditor();
            editor.BeginEdit(CPDFEditType.EditText);

            var textArea = editor.CreateTextArea();
            textArea.SetText("CONFIDENTIAL");
            textArea.SetFontSize(48);
            textArea.SetTransparency(128);

            editor.EndEdit();
            page.Release();
        }

        document.WriteToFilePath("watermarked.pdf");
        document.Release();
    }
}

Imports ComPDFKit.PDFDocument
Imports ComPDFKit.PDFPage
Imports System
Imports System.Drawing

Module Program
    Sub Main()
        Dim document = CPDFDocument.InitWithFilePath("input.pdf")

        For i As Integer = 0 To document.PageCount - 1
            Dim page = document.PageAtIndex(i)
            Dim editor = page.GetEditor()
            editor.BeginEdit(CPDFEditType.EditText)

            Dim textArea = editor.CreateTextArea()
            textArea.SetText("CONFIDENTIAL")
            textArea.SetFontSize(48)
            textArea.SetTransparency(128)

            editor.EndEdit()
            page.Release()
        Next

        document.WriteToFilePath("watermarked.pdf")
        document.Release()
    End Sub
End Module

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

class Program
{
    static void Main()
    {
        var pdf = PdfDocument.FromFile("input.pdf");

        pdf.ApplyWatermark("<h1 style='color:rgba(255,0,0,0.3);'>CONFIDENTIAL</h1>",
            rotation: 45,
            verticalAlignment: VerticalAlignment.Middle,
            horizontalAlignment: HorizontalAlignment.Center);

        pdf.SaveAs("watermarked.pdf");
    }
}

Imports IronPdf
Imports IronPdf.Editing
Imports System

Module Program
    Sub Main()
        Dim pdf = PdfDocument.FromFile("input.pdf")

        pdf.ApplyWatermark("<h1 style='color:rgba(255,0,0,0.3);'>CONFIDENTIAL</h1>", 
                           rotation:=45, 
                           verticalAlignment:=VerticalAlignment.Middle, 
                           horizontalAlignment:=HorizontalAlignment.Center)

        pdf.SaveAs("watermarked.pdf")
    End Sub
End Module

using ComPDFKit.PDFDocument;
using System.Text;

var document = CPDFDocument.InitWithFilePath("document.pdf");

// Extract text (verbose)
var allText = new StringBuilder();
for (int i = 0; i < document.PageCount; i++)
{
    var page = document.PageAtIndex(i);
    var textPage = page.GetTextPage();
    allText.AppendLine(textPage.GetText(0, textPage.CountChars()));
    textPage.Release();
    page.Release();
}

document.WriteToFilePath("output.pdf");
document.Release(); // Must remember to release!

Imports ComPDFKit.PDFDocument
Imports System.Text

Dim document = CPDFDocument.InitWithFilePath("document.pdf")

' Extract text (verbose)
Dim allText As New StringBuilder()
For i As Integer = 0 To document.PageCount - 1
    Dim page = document.PageAtIndex(i)
    Dim textPage = page.GetTextPage()
    allText.AppendLine(textPage.GetText(0, textPage.CountChars()))
    textPage.Release()
    page.Release()
Next

document.WriteToFilePath("output.pdf")
document.Release() ' Must remember to release!

using IronPdf;

var pdf = PdfDocument.FromFile("document.pdf");

// Extract text (one-liner)
string allText = pdf.ExtractAllText();

pdf.SaveAs("output.pdf");
// No Release() needed - GC handles cleanup

Imports IronPdf

Dim pdf = PdfDocument.FromFile("document.pdf")

' Extract text (one-liner)
Dim allText As String = pdf.ExtractAllText()

pdf.SaveAs("output.pdf")
' No Release() needed - GC handles cleanup

using IronPdf;

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

// Set security
pdf.SecuritySettings.UserPassword = "userPassword";
pdf.SecuritySettings.OwnerPassword = "ownerPassword";
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.FullPrintRights;
pdf.SecuritySettings.AllowUserCopyPasteContent = false;

pdf.SaveAs("protected.pdf");

Imports IronPdf

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

' Set security
pdf.SecuritySettings.UserPassword = "userPassword"
pdf.SecuritySettings.OwnerPassword = "ownerPassword"
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.FullPrintRights
pdf.SecuritySettings.AllowUserCopyPasteContent = False

pdf.SaveAs("protected.pdf")

//ComPDFKit- manual cleanup required
document.Release();
page.Release();
textPage.Release();

//IronPDF- no equivalent needed
// GC handles cleanup automatically

'ComPDFKit- manual cleanup required
document.Release()
page.Release()
textPage.Release()

'IronPDF- no equivalent needed
' GC handles cleanup automatically