Convert 7ZIP Files to EMZ in Java

What is 7ZIP file format?

The 7Z file format is a highly popular and open source file format that is widely used for both archiving and data compression. Developed by Igor Pavlov, the 7Z format is utilized by the 7-Zip archiver for creating compressed archives. With its ability to compress a wide range of file types, including executable files, Office documents, and multimedia files, it has become a popular choice among users. One of the most significant advantages of the 7Z format is its high compression ratio, which results in smaller file sizes compared to other compression formats.

Due to its low file size and robust security features, the 7Z format is increasingly being used as a preferred method for transferring large files over the internet. It allows archives to be password-protected and encrypted for additional security, and archives can also be split into multiple volumes or parts for easy transmission or storage on external media.

With support available in numerous archiving programs, including 7-Zip, PeaZip, and WinRAR, the 7Z format is prevalent in the open-source community. It has emerged as a viable solution for developers to bundle multiple files into a single archive for software delivery. The 7Z format also enables the compression of files within an archive without extracting them, making it an efficient and flexible solution for both small and large file archiving and transportation. All in all, the 7Z file format provides a reliable, secure, and efficient way to package and transport files of all types and sizes.

What is EMZ file format?

The EMZ file format is a bitmap image format associated with Microsoft Windows. It is an enhanced version of the Windows Metafile (WMF) format and includes the same vector and raster imagery as WMF files, with the addition of compression and additional image information. EMZ files are often used by Microsoft applications such as Word and PowerPoint to store vector images. EMZ files can be opened using many image viewers, including Microsoft Office and Adobe Illustrator, as well as popular image editing programs such as Adobe Photoshop. As with other image formats, EMZ files support various color depths and file sizes, allowing for relatively small images, as well as high-resolution images with millions of colors. Although EMZ files are generally smaller than WMF, their compression does not necessarily lead to a good quality image. As with any compressed format, the quality of the image depends on the degree of compression used, so it is important to use the appropriate settings when compressing an EMZ file. In general, EMZ files are best used for graphic images that do not need to be modified, such as logos and other types of corporate artwork. They are also suitable for use in presentations where the quality of the image is not critical.