Convert DRF to CAL

Batch convert DRF RAW files to CAL in one click. reaConverter handles entire photo libraries with consistent settings.

Got a folder full of DRF files? reaConverter batch converts them to CAL in minutes, not hours. Local processing means instant results, even with thousands of files. Photographers use it to batch process entire shoots in minutes.

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How to Convert Multiple DRF Images to CAL?

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately. You can also resize, crop, and adjust images during conversion.

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Install reaConverter

2. Load your DRF files

Open reaConverter and add your DRF files. You can load individual files, entire folders, or even nested subfolders.

Use drag-and-drop, folder browser, or right-click conversion from Explorer.

Load your DRF files into reaConverter

3. Select CAL as output format

Pick CAL as output format and choose the destination folder where you want to save new .cal files.

Select CAL as output format

4. Start DRF to CAL conversion

Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Start Conversion

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your CAL output.

DRF to CAL Converter

reaConverter offers the fastest, simplest solution for converting your DRF files into CAL in seconds - all photos processed on your PC for maximum privacy and speed.

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Do more with your images

Converting DRF images for use in a larger project? With reaConverter, you can convert, edit, and enhance your images in one streamlined process.

Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.

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User Reviews

Average User Rating:
Last updated on January 25, 2026
"Finally an app that actually opens my weird files! Saves me from format frustration daily."
Kyle Brooks
Kyle Brooks
Happy User
"This converter delivers exceptionally quick format conversions with reliable results every time."
Brian White
Brian White
Happy User
"Security was our top concern when evaluating file conversion tools. reaConverter’s offline mode and role-based access controls let us lock it down for sensitive environments. No unexpected network calls or bloat — just clean, fast conversions. Even passed our pen-testing scans without a hitch."
Marcus White
Marcus White
Healthcare IT
"This software just works! My old laptop can’t handle Photoshop, but reaConverter flies through conversions without breaking a sweat. Wi-Fi gone? Still strong!"
Robert Williams
Robert Williams
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"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"
Henry R.
Henry R.
Happy User
"For cross-platform compatibility, JPEG remains the gold standard. reaConverter’s precision conversions ensure perfect results every time, whether for presentations, websites, or client deliverables."
Paul Baker
Paul Baker
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DRF to CAL Conversion: FAQ

What are DRF files?

The DRF format is associated with RAW images taken using some types of Kodak digital cameras. DRF images cannot be viewed as such, but need to go through an advanced image editing process, in which aspects such as color balance and brightness are adjusted. The DRF format is particularly used by professional photographers because it allows them to obtain high-quality and high-resolution images that can be shaped according to their desire during post-processing.

What are CAL files?

A CAL image file represents a monochrome bitmap image that uses the CALS raster image standard for storing graphics data. This standard was created in the 1980s by the US Department of Defence as a compressed interchangeable image format. CAL and CALS are extensions used for similar purposes.

Can reaConverter convert DRF to CAL?

Yes! reaConverter instantly converts .drf to .cal with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

What is reaConverter used for?

reaConverter is a software program used for converting images and other types of files from one format to another. It supports a wide range of file formats and allows users to convert multiple files at once, making it a valuable tool for graphic designers, photographers, and other professionals who work with digital images. reaConverter also includes features for resizing, cropping, and editing images, along with batch processing capabilities that help automate repetitive tasks.

Can I convert DRF to CAL online?

If you only need to convert a few DRF files to CAL format, feel free to try our free online free online DRF to CAL converter — perfect for small batches with no installation needed!

How can I turn DRF files into CAL on my computer?

The best way to change DRFs to CALs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from DRF to CAL.

How can I automate DRF to CAL files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert DRF files to CAL using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line drf to cal converter for batch processing.

What else can I do with reaConverter?

Convert vector filesConvert picture color spaceChange format settingsChange image DPIConvert GIS files

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