Aug 28, 2013  Mac users are lucky that they can compress the size of PDF file with Mac built-in Preview application in simple 3 steps, without downloading extra software. Double click the PDF you want to compress and it will be opened with the Preview application automatically. If not, you need to drag and drop PDF on the Preview to launch the PDF in Preview. Aug 26, 2009  In order to shrink the size of a file or files, compressing the file will help shrink the size of the file, but still retain it's original form. And zipped files can be opened on both Mac OS X.

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Definition

Provides static methods for creating, extracting, and opening zip archives.

Inheritance

Examples

This example shows how to create and extract a zip archive by using the ZipFile class. It compresses the contents of a folder into a zip archive, and then extracts that content to a new folder.

Tip

To use the ZipFile class, you must reference the System.IO.Compression.FileSystem assembly in your project.

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Remarks

Important

To use the ZipFile class, you must add a reference to the System.IO.Compression.FileSystem assembly in your project; otherwise, you'll get the following error message when trying to compile : The name 'ZipFile' does not exist in the current context. For more information on how to add a reference to your project in Visual Studio, see How to: Add or Remove References By Using the Reference Manager.

The methods for manipulating zip archives and their files are spread across three classes: ZipFile, ZipArchive and ZipArchiveEntry.

To…	Use…
Create a zip archive from a directory	ZipFile.CreateFromDirectory
Extract the contents of a zip archive to a directory	ZipFile.ExtractToDirectory
Add new files to an existing zip archive	ZipArchive.CreateEntry
Retrieve an file in a zip archive	ZipArchive.GetEntry
Retrieve all of the files in a zip archive	ZipArchive.Entries
To open a stream to an individual file contained in a zip archive	ZipArchiveEntry.Open
Delete a file from a zip archive	ZipArchiveEntry.Delete

You cannot use the ZipFile or ZipFileExtensions classes in Windows 8.x Store apps. In Windows 8.x Store apps, you should use the following classes to work with compressed files.

Methods

CreateFromDirectory(String, String)	Creates a zip archive that contains the files and directories from the specified directory.
CreateFromDirectory(String, String, CompressionLevel, Boolean)	Creates a zip archive that contains the files and directories from the specified directory, uses the specified compression level, and optionally includes the base directory.
CreateFromDirectory(String, String, CompressionLevel, Boolean, Encoding)	Dell optiplex 3010 driver pack. Creates a zip archive that contains the files and directories from the specified directory, uses the specified compression level and character encoding for entry names, and optionally includes the base directory.
ExtractToDirectory(String, String)	Extracts all the files in the specified zip archive to a directory on the file system.
ExtractToDirectory(String, String, Boolean)	Extracts all of the files in the specified archive to a directory on the file system.
ExtractToDirectory(String, String, Encoding)	Extracts all the files in the specified zip archive to a directory on the file system and uses the specified character encoding for entry names.
ExtractToDirectory(String, String, Encoding, Boolean)	Extracts all of the files in the specified archive to a directory on the file system.
Open(String, ZipArchiveMode)	Opens a zip archive at the specified path and in the specified mode.
Open(String, ZipArchiveMode, Encoding)	Opens a zip archive at the specified path, in the specified mode, and by using the specified character encoding for entry names.
OpenRead(String)	Opens a zip archive for reading at the specified path.

Applies to

See also