Compress DNG format using C#

DNG Compression Overview

Aspose.ZIP for .NET gives developers a reliable C# API to compress DNG image files in .NET applications. It supports single files and large batches, works with file paths or streams, and lets you control compression level and archive format. This fits workflows that package assets for web, print, or QA. Package DNG content into ZIP, 7Zip, TAR, GZIP, and other archives without external tools, and secure output with password protection or AES encryption when needed. This approach fits automation in batch jobs, CI pipelines, and server-side processing tasks.

  PM> Install-Package Aspose.ZIP

C# Example: Compress DNG Files Programmatically

The snippet below illustrates the basic API workflow for compressing a DNG file, including archive creation, entry addition, and saving the final ZIP output.

Compress DNG file via .NET:

    var dir = "full directory path";
    using (var arch = new Archive())
    {
    arch.CreateEntry("filename.dng", dir+"file.dng");
    arch.Save(dir+"archived_result.zip");
    }

FAQ

Can I compress multiple DNG files into a single ZIP archive using C#

1. Yes. Aspose.ZIP for .NET allows you to load and compress multiple DNG files by adding each file as an entry to the Archive object. You can combine individual files, folders, or streams into a single ZIP archive through a straightforward C# workflow.

Does Aspose.ZIP for .NET reduce the original quality of DNG files?

2. No. Aspose.ZIP performs lossless compression, meaning that the content and quality of your DNG files remain unchanged. The library only reduces file size by applying efficient archive compression algorithms without altering the actual data inside the file.

Can I password-protect ZIP archives that contain DNG files?

3. Yes. The library supports password protection and AES encryption, allowing you to securely package sensitive DNG files. You can specify encryption settings when creating entries or during the archive-generation process.