C# ZIP 文件（使用 IronZip 的開發者教程）

Prerequisites

Before you explore ZIP file manipulation with IronZIP and IronPDF, ensure the following prerequisites are met:

1. Visual Studio: Install Visual Studio or any other C# Integrated Development Environment (IDE) of your choice.
2. Basic C# knowledge: Familiarize yourself with fundamental concepts of the C# programming language.

Install IronZIP Package

To kick-start your journey with IronZIP, swiftly install the IronZIP NuGet Package in your project. Execute the following command in the NuGet Package Manager Console:

Install-Package IronZip

Alternatively, download the package directly from the official IronZIP NuGet website.

Once the installation is complete, initiate your C# code by adding the using IronZip; statement at the top.

using IronZip;

namespace YourNamespace
{
    class Program
    {
        static void Main(string[] args)
        {
            // Apply the IronZIP license key
            IronZip.Licensing.License.LicenseKey = "IRONZIP.MYLICENSE.KEY.1EF01";
            // Your ZIP manipulation code using IronZIP
        }
    }
}

using IronZip;

namespace YourNamespace
{
    class Program
    {
        static void Main(string[] args)
        {
            // Apply the IronZIP license key
            IronZip.Licensing.License.LicenseKey = "IRONZIP.MYLICENSE.KEY.1EF01";
            // Your ZIP manipulation code using IronZIP
        }
    }
}

Imports IronZip

Namespace YourNamespace
	Friend Class Program
		Shared Sub Main(ByVal args() As String)
			' Apply the IronZIP license key
			IronZip.Licensing.License.LicenseKey = "IRONZIP.MYLICENSE.KEY.1EF01"
			' Your ZIP manipulation code using IronZIP
		End Sub
	End Class
End Namespace

Create a ZIP File

Creating a ZIP file with IronZIP is simple. Utilize the IronArchive class to establish an empty ZIP archive and then add files to it. The following code snippet demonstrates the creation of a ZIP file named "Images.zip" and the addition of four image files to it:

using IronZip;

namespace CSharpZipArchive
{
    internal class Program
    {
        static void Main(string[] args)
        {
            // Create an archive called Images.zip
            using (var archive = new IronArchive("Images.zip"))
            {
                // Add files to the ZIP
                archive.Add(@"E:\Datasets\1002-v1.png");
                archive.Add(@"E:\Datasets\1002-v2.png");
                archive.Add(@"E:\Datasets\1002-v3.png");
                archive.Add(@"E:\Datasets\1002-v4.png");
            }  // The archive is automatically closed here
        }
    }
}

using IronZip;

namespace CSharpZipArchive
{
    internal class Program
    {
        static void Main(string[] args)
        {
            // Create an archive called Images.zip
            using (var archive = new IronArchive("Images.zip"))
            {
                // Add files to the ZIP
                archive.Add(@"E:\Datasets\1002-v1.png");
                archive.Add(@"E:\Datasets\1002-v2.png");
                archive.Add(@"E:\Datasets\1002-v3.png");
                archive.Add(@"E:\Datasets\1002-v4.png");
            }  // The archive is automatically closed here
        }
    }
}

Imports IronZip

Namespace CSharpZipArchive
	Friend Class Program
		Shared Sub Main(ByVal args() As String)
			' Create an archive called Images.zip
			Using archive = New IronArchive("Images.zip")
				' Add files to the ZIP
				archive.Add("E:\Datasets\1002-v1.png")
				archive.Add("E:\Datasets\1002-v2.png")
				archive.Add("E:\Datasets\1002-v3.png")
				archive.Add("E:\Datasets\1002-v4.png")
			End Using ' The archive is automatically closed here
		End Sub
	End Class
End Namespace

The using statement creates a scoped instance of the IronArchive class and associates it with the variable archive. The constructor of IronArchive takes a single argument: the name of a ZIP file ("Images.zip" in this case).

The code adds four files to the ZIP archive represented by the archive variable. The files are specified by their full paths:

• E:\Datasets\1002-v1.png
• E:\Datasets\1002-v2.png
• E:\Datasets\1002-v3.png
• E:\Datasets\1002-v4.png

Since the IronArchive class implements IDisposable, the using statement ensures the archive is closed correctly, and resources are released when the code block is exited.

In this way, this program creates a ZIP archive named "Images.zip" and adds four image files to it. IronZip made this super easy, fast, and efficient.

using IronZip; 

namespace YourNamespace
{
    public class ExtractionExample
    {
        public static void Main(string[] args)
        {
            // Extract contents of the ZIP archive
            IronArchive.ExtractArchiveToDirectory("Images.zip", "Extracted Images");
        }
    }
}

using IronZip; 

namespace YourNamespace
{
    public class ExtractionExample
    {
        public static void Main(string[] args)
        {
            // Extract contents of the ZIP archive
            IronArchive.ExtractArchiveToDirectory("Images.zip", "Extracted Images");
        }
    }
}

Imports IronZip

Namespace YourNamespace
	Public Class ExtractionExample
		Public Shared Sub Main(ByVal args() As String)
			' Extract contents of the ZIP archive
			IronArchive.ExtractArchiveToDirectory("Images.zip", "Extracted Images")
		End Sub
	End Class
End Namespace

Add Files to an Existing ZIP file using C#

In C# software applications, adding files to an existing ZIP file is valuable for dynamic content management. Imagine a file manager application where users can easily expand a compressed archive by adding new files. IronZIP provides seamless functionality to modify any existing ZIP file.

using IronZip;

namespace CSharpZipArchive
{
    internal class Program
    {
        static void Main(string[] args)
        {
            // Open an existing ZIP file and create a new one
            using (var archive = IronArchive.FromFile("Images.zip", "NewImages.zip"))
            {
                // Add new files to the ZIP
                archive.Add(@"E:\Datasets\1011-v1.png");
                archive.Add(@"E:\Datasets\1011-v2.png");
            }  // The new archive is automatically closed here
        }
    }
}

using IronZip;

namespace CSharpZipArchive
{
    internal class Program
    {
        static void Main(string[] args)
        {
            // Open an existing ZIP file and create a new one
            using (var archive = IronArchive.FromFile("Images.zip", "NewImages.zip"))
            {
                // Add new files to the ZIP
                archive.Add(@"E:\Datasets\1011-v1.png");
                archive.Add(@"E:\Datasets\1011-v2.png");
            }  // The new archive is automatically closed here
        }
    }
}

Imports IronZip

Namespace CSharpZipArchive
	Friend Class Program
		Shared Sub Main(ByVal args() As String)
			' Open an existing ZIP file and create a new one
			Using archive = IronArchive.FromFile("Images.zip", "NewImages.zip")
				' Add new files to the ZIP
				archive.Add("E:\Datasets\1011-v1.png")
				archive.Add("E:\Datasets\1011-v2.png")
			End Using ' The new archive is automatically closed here
		End Sub
	End Class
End Namespace

The IronArchive.FromFile("Images.zip", "NewImages.zip") method creates an archive object from an existing ZIP file named "Images.zip" and specifies that the new archive should be named "NewImages.zip".

The two lines within the using block add files to the newly created archive:

• archive.Add(@"E:\Datasets\1011-v1.png");
• archive.Add(@"E:\Datasets\1011-v2.png");

These lines add the specified image files to the "NewImages.zip" archive.

Compress PDF File

In addition to managing ZIPs, C# also offers the capability to compress PDF files seamlessly. This task is made achievable with the assistance of a third-party library: IronPDF. It stands out as a reliable solution for compressing PDFs while preserving their quality.

Install-Package IronZip

using IronPdf;

namespace YourNamespace
{
    internal class Program
    {
        static void Main(string[] args)
        {
            // Load the PDF document
            var pdf = new PdfDocument(@"E:\myPDF.pdf");

            // Compress images in the PDF to 60% of original quality
            pdf.CompressImages(60);

            // Save the compressed PDF
            pdf.SaveAs(@"E:\myCompressedPDF.pdf");
        }
    }
}

using IronPdf;

namespace YourNamespace
{
    internal class Program
    {
        static void Main(string[] args)
        {
            // Load the PDF document
            var pdf = new PdfDocument(@"E:\myPDF.pdf");

            // Compress images in the PDF to 60% of original quality
            pdf.CompressImages(60);

            // Save the compressed PDF
            pdf.SaveAs(@"E:\myCompressedPDF.pdf");
        }
    }
}

Imports IronPdf

Namespace YourNamespace
	Friend Class Program
		Shared Sub Main(ByVal args() As String)
			' Load the PDF document
			Dim pdf = New PdfDocument("E:\myPDF.pdf")

			' Compress images in the PDF to 60% of original quality
			pdf.CompressImages(60)

			' Save the compressed PDF
			pdf.SaveAs("E:\myCompressedPDF.pdf")
		End Sub
	End Class
End Namespace

Efficient File Management with IronZIP and IronPDF in C#

In C# development, the combination of IronZIP and IronPDF presents a robust solution for comprehensive file management. IronZIP excels in efficiently compressing and manipulating ZIP files, offering developers a seamless experience for creating and extracting archives. Simultaneously, IronPDF serves as a powerful tool for handling PDF documents, enabling file compression while maintaining document integrity. This integration allows developers to navigate effortlessly between compressed archives and PDF files, enhancing the overall functionality and performance of their applications.

Whether compressing diverse files into a ZIP archive or optimizing PDF document sizes, the combined power of IronZIP and IronPDF forms a flexible toolkit for developers, addressing a range of file-related challenges.

Conclusion

In conclusion, IronZIP for C# offers robust capabilities for working with compressed files, enabling developers to create ZIP files, extract, and manipulate archives efficiently. IronPDF is also a powerful tool for compressing PDF files, making it easy to reduce file sizes while maintaining document integrity. Developers can leverage these features to enhance their applications' performance and functionality, ensuring the seamless handling of archived and compressed files. Furthermore, it's worth noting that IronPDF offers a flexible licensing model, including a free trial, allowing developers to explore its capabilities and determine the best fit for their projects. This trial period provides a valuable opportunity for developers to evaluate IronZIP's and IronPDF's features before committing to licensing.