DNG supports various metadata formats (including Exif metadata, XMP metadata, IPTC metadata) and specifies a set of mandated metadata. ![]() DNG conforms to TIFF/EP and is structured according to TIFF. File extension. It usually has the extension "dng" or "DNG". The use of the file format is royalty-free.Ī DNG file always contains data for one main image, plus metadata, and optionally contains at least one JPEG preview. DNG is based on the TIFF/EP standard format and mandates effective use of metadata. Since the launch, all Adobe photo manipulation software (such as Adobe Photoshop and Adobe Lightroom) supports DNG. Digital Negative (DNG) is a patented, open lossless raw image format written by Adobe used for digital photography.
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