DNG Leave feedback On this page FileType.DNG field See Also FileType.DNG field Digital Negative Specification (.dng) is a digital camera image format used for the storage of raw files. It has been developed by Adobe in September 2004. It was basically developed for digital photography. Learn more about this file format here. public static readonly FileType DNG; See Also class FileType namespace GroupDocs.Viewer assembly GroupDocs.Viewer Was this page helpful? Not really Yes, thanks Any additional feedback you'd like to share with us? Skip Send Please tell us how we can improve this page. Skip Send Thank you for your feedback! We value your opinion. Your feedback will help us improve our documentation.