KDC (Kodak Digital Camera)
Kodak's proprietary raw image format, born from the earliest consumer digital cameras of the 1990s.
| Full name | Kodak Digital Camera |
| Extension | .kdc |
| MIME type | image/x-kodak-kdc |
| Developer | Eastman Kodak Company |
| Released | 1995 (with the Kodak DC40) |
| Type | Proprietary raw image |
| Based on | TIFF (Tagged Image File Format) |
| Camera families | DC series (DC40, DC50, DC120) and EasyShare P-Series, Z-Series |
What is a KDC file?
KDC is a raw image format created by Eastman Kodak Company for its digital cameras. It stores image data as captured by the camera sensor, before any in-camera processing is applied. This gives photographers the raw material needed to control exposure, white balance, and color in post-production software.
A KDC file holds the unprocessed data read directly off a Kodak camera's CCD sensor. Because it skips in-camera JPEG processing, it preserves more tonal information than a standard JPEG would. The format is built on the TIFF specification, which makes it somewhat readable by software that handles TIFF-based raw files. Kodak actually produced two distinct KDC format families over the years — the older DC-series format and a newer EasyShare-series format — and the two have little in common internally despite sharing the same file extension.
History
The KDC format debuted in 1995 alongside the Kodak DC40, one of the first affordable consumer digital cameras sold in the United States at a launch price of $995. The DC50 followed in January 1996 and the DC120 in 1997, each producing KDC files. When Kodak later introduced the EasyShare camera line in the 2000s, it reused the .kdc extension for a different raw format aimed at enthusiast shooters in the P-Series and Z-Series cameras, creating a split in what the extension actually means in practice.
How it works
KDC files follow the TIFF container structure, using Image File Directories to organize the stored data. The files contain raw sensor output from a Bayer color filter array, along with embedded metadata such as exposure settings, white balance, and camera model information. The older DC-series KDC files were relatively small — averaging around 120 KB — because the sensors in those cameras had very low resolution by modern standards. The newer EasyShare KDC variant stores higher-resolution sensor data and includes more complete EXIF metadata.
What it is used for
- Archiving original captures from Kodak DC-series or EasyShare cameras without any lossy compression
- Post-processing old Kodak digital photos with full control over white balance and exposure
- Converting legacy Kodak raw files to modern formats like JPEG, TIFF, or DNG for long-term storage
- Recovering maximum detail from early digital photography collections for restoration or printing
How to open it
Adobe Lightroom, Adobe Camera Raw, and the open-source tools dcraw and darktable can open most KDC files from both the DC-series and EasyShare camera families. On Windows, IrfanView with the appropriate plugin also handles KDC files from many Kodak models.
Pros and cons
Strengths
- Stores unprocessed sensor data, giving photographers full post-processing control
- Based on the TIFF standard, which makes the container relatively accessible to third-party developers
- Retains original exposure and white balance information that JPEG discards
- Supported by major raw processing applications including Adobe Lightroom and darktable
Trade-offs
- Two incompatible KDC format families share the same extension, which can confuse software
- Kodak is no longer manufacturing cameras, so the format has no active development or future
- Older DC-series KDC files were captured at very low resolution (sub-1 MP), limiting their usefulness today
- Requires raw-capable software to view or edit; standard image viewers cannot display KDC files correctly
Convert KDC files
Free, in your browser, no signup. Start at the KDC converter, or jump straight to a popular conversion below.
Curious how fast and how small? See our measured conversion benchmarks.
KDC FAQ
Why do some KDC files not open in my software even though it claims KDC support?
Kodak used the .kdc extension for two different and incompatible raw formats — one for the older DC-series cameras (DC40, DC50, DC120) and another for the later EasyShare P-Series and Z-Series models. Software that supports one family may not handle the other. If your file does not open, try a different application such as dcraw or darktable, which handle both variants.
Can I convert a KDC file to JPEG or PNG?
Yes. Applications like Adobe Lightroom, Adobe Camera Raw, darktable, and RawTherapee can export KDC files to JPEG, PNG, TIFF, and other common formats. The free command-line tool dcraw also converts KDC files and works well for batch processing.
Is KDC the same as DNG?
No. DNG (Digital Negative) is an open raw format created by Adobe in 2004 as a universal standard for raw image data. KDC is a proprietary format created by Kodak and specific to Kodak cameras. You can convert KDC files to DNG using Adobe DNG Converter, which is useful for long-term archiving with broader software support.
What cameras produce KDC files?
KDC files were produced by the Kodak DC40 (1995), DC50 (1996), and DC120 (1997) in the DC series, and later by models in the Kodak EasyShare P-Series and Z-Series lines. If you own a Kodak camera from any era between the mid-1990s and the 2010s, there is a good chance it saved raw images as KDC files.