.DNG

.DNG File Extension

Learn what a .dng file is, what it is used for, which programs can open it, and how to convert or troubleshoot this file format.

Image File Extension Guide 450 Searches
.DNG
Digital Negative

Quick Facts

Basic information about this file format

Extension
.DNG
File Type
Digital Negative
Category
Image
Best first step
Use compatible software

Quick Summary

A practical overview of the .dng file format

The DNG (Digital Negative) file format is a proprietary, publicly available lossless raw image format developed by Adobe. It is intended to be a universal raw image format for digital cameras, aiming to standardize the way raw image data is stored. Unlike JPEG, which is a processed and compressed i…

File extension .DNG
File type Digital Negative
Category Image
Recommended action Open with a trusted compatible app

How to open a .dng file

Start with a trusted app that supports this format

  • Check the file extension carefully and confirm that the file name really ends with .dng.
  • Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
  • Update the application if the file was created by a newer version of the software.
  • Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.

What is a .dng file?

File extension details and usage information

The DNG (Digital Negative) file format is a proprietary, publicly available lossless raw image format developed by Adobe. It is intended to be a universal raw image format for digital cameras, aiming to standardize the way raw image data is stored. Unlike JPEG, which is a processed and compressed image format, DNG files contain minimally processed data directly from the camera's sensor. This allows photographers to have greater control over the final image during post-processing, adjusting parameters like white balance, exposure, and contrast without permanently altering the original data. DNG files often include metadata such as camera settings, date and time, and GPS coordinates. The format is designed to be future-proof, ensuring that raw image data remains accessible even as camera technology evolves. While many camera manufacturers have their own proprietary raw formats, DNG offers a standardized alternative that promotes interoperability and long-term archival of digital photographs. It is often used by photographers who want to preserve the maximum amount of image data and maintain flexibility in their workflow.

Software Compatibility

Programs that may open or work with .dng files

Windows

Compatible applications

Adobe Photoshop Compatible
Adobe Lightroom Compatible
Adobe Camera Raw Compatible
Capture One Compatible
IrfanView Compatible
RawTherapee Compatible
DxO PhotoLab Compatible

macOS

Compatible applications

Adobe Photoshop Compatible
Adobe Lightroom Compatible
Adobe Camera Raw Compatible
Capture One Compatible
Apple Preview Compatible
RawTherapee Compatible
DxO PhotoLab Compatible

Linux

Compatible applications

RawTherapee Compatible
Darktable Compatible
digiKam Compatible
GIMP (with UFRaw plugin) Compatible

Mobile

Mobile applications

Adobe Lightroom Mobile Compatible
Adobe Photoshop Express Compatible
Snapseed Compatible
Raw Power Compatible

Can .dng files be converted?

Options for saving or exporting this file to another format

In many cases, a .dng file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.

  • Use the original software that created the file when possible.
  • Check whether the application supports exporting to common formats.
  • Be careful with online converters when working with private, business, or sensitive files.
  • If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .dng file.

Why can't I open a .dng file?

Common reasons this file type may not open correctly

Wrong software

The file may require a specific program that supports the .dng format.

Incorrect extension

The file extension may have been renamed manually, even though the actual file format is different.

Corrupted file

The file may be incomplete, damaged during download, or transferred incorrectly.

Outdated app

Your software may need to be updated before it can open newer versions of this file format.

Frequently Asked Questions

Common questions about .dng files

To open a .dng file, use software that supports this file format.

  • Adobe Photoshop
  • Adobe Lightroom
  • Adobe Camera Raw
  • Capture One
  • IrfanView

Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.

  1. Verify that the file extension is correct.
  2. Install or update compatible software.
  3. Try another application that supports this format.
  4. Check whether the file is corrupted, incomplete, or encrypted.

A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.

File safety tips

Use caution with unknown files

Only open files from trusted sources. Before opening a .dng file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.