CAP → CG4 · Windows

Convert CAP to CG4

CAP to CG4 conversion that preserves your work. reaConverter gives you control over colour space, resolution, and compression.

Got a folder full of CAP files? reaConverter batch converts them to CG4 in minutes, not hours. Local processing means instant results, even with thousands of files. RAW files convert with full color and quality control, ensuring zero degradation.

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CAP to CG4
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.cap.CG4
4.8

Converting files since 2001

Runs offline — nothing uploaded

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How to Convert Multiple .cap Images to .cg4?

1. Download and Install reaConverter

reaConverter is a standalone Windows app — download, install, and start converting CAP files in under two minutes. reaConverter also includes editing tools: resize, crop, rotate, and more.

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Install reaConverter

2. Load your CAP files

Load your CAP RAW photos into reaConverter. Add entire shoots at once and process them in minutes.

Browse for files, drag them in, or add entire folders at once. reaConverter queues everything automatically.

Load your CAP files into reaConverter

3. Select CG4 as output format

Choose CG4 as output format. Adjust color profile, quality, and resolution settings to match your photography workflow.

Select CG4 as output format

4. Start CAP to CG4 conversion

Start the conversion with one click. reaConverter handles everything and notifies you when it's done.

Start Conversion

When the batch finishes, your CG4 files are ready in the destination folder you chose earlier.

Step by step

How It Works

reaConverter offers the fastest, simplest solution for converting your CAP files into CG4 in seconds - all photos processed on your PC for maximum privacy and speed.

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Power Features

Do more with your images

Converting CAP 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.

Image editing tools
Image editing

User reviews

What people say after the first batch

Average User Rating:4.8
Last updated on August 28, 2026
reaConverter saved our team hundreds of hours by digitizing decades of CG4 archives in weeks—not months. Its resolution scaling preserved every detail, even in files older than some team members!
Anna K.
Anna K.
Satisfied Customer
An excellent program! I use it regularly in my work - it supports nearly every file format imaginable. The interface is intuitive and runs flawlessly every time.
Roger Cook
Roger Cook
Happy User
For agencies handling confidential data, reaConverter eliminates cloud-upload risks while delivering unmatched conversion reliability. Our team uses it both in-office and remotely with identical results.
Jamal Bailey
Jamal Bailey
Satisfied Customer
Our volunteer team uses reaConverter to prepare images for fundraising campaigns. The learning curve was minimal, and the results are professional-grade. The customer support team even helped us customize a workflow — fantastic service!
Jason P. Bailey
Jason P. Bailey
Non-Profit Coordinator
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

FAQ

CAP to CG4 Conversion

What are CAP files?

The CAP format is associated with RAW images taken with a Phase One camera. Phase One is a Danish producer of high-end medium-sized cameras, particularly popular among photography experts and professionals. A CAP file represents a high-resolution photograph, taken without any automatic corrections of colors, white balance or luminosity. CAP images are very large in size and they can be visualized only after going through digital processing using specialized software.

What are CG4 files?

CG4 is a raster format associated with CALS (Continuous Acquisition and Life-Cycle Support) — a program initiated by the US Department of Defense to capture and link military data. CG4 is compatible with a very limited number of digital graphics programs. Files with this extension contain a bitmap that often uses the CCITT4 compression, which is an old fax machine standard used for black-and-white images.

Can reaConverter convert CAP to CG4?

Yes! reaConverter instantly converts .cap to .cg4 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 CAP to CG4 online?

If you only need to convert a few CAP files to CG4 format, feel free to try our free online free online CAP to CG4 converter — perfect for small batches with no installation needed!

How can I turn CAP files into CG4 on my computer?

The best way to change CAPs to CG4s 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 CAP to CG4.

How can I automate CAP to CG4 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 CAP files to CG4 using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line cap to cg4 converter for batch processing.

What else can I do with reaConverter?

Convert RAW photo formatsConvert vector imagesChange image DPIConvert Gerber imagesConvert picture color space

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