There are two file types that use the DNG file extension. The most common one is the Digital Negative format from Adobe, this is a raw image format designed for archival, and for use as an open standard for digital camera raw image formats.
The DNG extension may also refer to the Virtual Dongle disk image file type. This file type contains a virtual copy of a dongle and includes licencing information to act as a key, to allow certain software to run. The dongle is a physical DRM tool to protect expensive software from pirates, the virtual DNG format is intended as a backup, in case a user’s physical dongle gets damaged or stolen.
How can you open DNG files?
Most, but not all, image viewers and photo editing software can open Digital Negative image files, and convert them into more common file types.
Virtual Dongle disk image formats can only be read by proprietary software or dongle emulators.
What programs work with DNG files?
Programs such as Adobe Photoshop, Adobe Lightroom, Microsoft Photos, Serif PhotoPlus, Cyberlink PhotoDirector 8 Ultra and MacPhun ColorStrokes can all open Digital Negative image files. Image file converters like Zamzar can also convert DNG files to other standard image file types.
DongleBackup2012 is a windows based USB dongle emulator that runs a virtual USB controller for users with legitimate licence keys.