Convert COB to CG4

With our fast and user-friendly COB to CG4 converter, you can steer clear of the tedious task of manually converting multiple .cob files into cg4 format for hours on end.

reaConverter is a standalone software program that allows you to convert multiple files from .cob file format to .cg4 format quickly and efficiently, with support for batch processing, customizable output settings, and high-quality rendering.

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COB to CG4
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COBCG4

How to Convert Multiple COB Files to CG4?

1. Download and Install reaConverter

reaConverter is quick to download, install and launch. This standalone software is extremely efficient in managing a wide range of batch conversions. reaConverter is incredibly powerful and boasts an extensive variety of features.

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Install reaConverter

2. Load your COB files

Start reaConverter and load all the .cob files you intend to convert into .cg4. The software supports multiple COB conversion and processes all files locally on your computer.

Select COBs from a folder or by drag-and-dropping them directly into the reaConverter window.

Load your COB files into reaConverter

3. Select CG4 as output format

Pick the CG4 as output format and choose the destination folder where you want to save new .cg4 files.

Select CG4 as output format

4. Start COB to CG4 conversion

Then simply press Convert button and your conversion will begin in no time!

Screenshot

Once the conversion is complete, you can find your CG4 files in the destination folder you selected.

COB to CG4 Converter

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

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Do more with your files

Converting COB files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on May 24, 2025
"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.
Satisfied Customer
"An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!"
⭐⭐⭐⭐⭐
Logan B.
Satisfied Customer
"I use the online converter — it’s quick and hassle-free!"
⭐⭐⭐⭐⭐
Jian Wong
Happy Online User
"Working in a print studio means constantly juggling obscure file formats. I used to waste hours Googling converters or installing random software — until reaConverter became my Swiss Army knife. Install it once, and you're set forever. No internet? No problem!"
⭐⭐⭐⭐⭐
Helen Evans
Satisfied Customer
"5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs."
⭐⭐⭐⭐⭐
J. Mitchell
Satisfied Customer
"reaConverter is pure gold! Rock-solid performance with zero crashes. No internet needed—perfect for travel or low-connectivity work. The ultimate offline alternative to sketchy web converters. Plus, the desktop version keeps sensitive files secure since nothing ever gets uploaded to the cloud."
⭐⭐⭐⭐⭐
Malik T. Martin
Satisfied Customer

COB to CG4 Conversion: FAQ

What are COB files?

COB is a 3D graphics format associated with TrueSpace, a program initially developed by Caligari Corporation, acquired by Microsoft in the late 2000s. TrueSpace had several releases and delivered 3D rendering, modeling and animation features, with its latest edition featuring the possibility of several users to connect via broadband internet and contribute to shared 3D content in real-time. The software has been discontinued starting with 2009.

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 COB to CG4?

Yes! reaConverter instantly converts .cob 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.

Can I convert COB to CG4 online?

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

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

The best way to change COBs 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 COB to CG4.

How can I automate COB 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 COB 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 cob to cg4 converter for batch processing.

What else can I do with reaConverter?

Convert DICOM filesResize pictureCopy metadata (EXIF, IPTC)Convert RAW photosChange format settings

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