Convert ARW to CG4

Turn ARW camera files into CG4 quickly. reaConverter handles batch RAW conversion with options for exposure, color, and quality.

Online converters too slow for your ARW files? reaConverter works locally and handles unlimited batches. All processing runs locally on your PC, so your files stay private and secure. Studios rely on it for consistent color across thousands of photos.

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ARW to CG4
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ARWCG4

How to Convert Multiple ARW Images to CG4?

1. Download and Install reaConverter

Download reaConverter and install it in seconds. The setup is straightforward — no complex configuration, no extra software required. Need edits? Resize, rotate, or add watermarks during conversion.

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Install reaConverter

2. Load your ARW files

Open reaConverter and import your .arw files. No file limits, no slowdowns. Add as many as you need.

You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.

Load your ARW files into reaConverter

3. Select CG4 as output format

Pick CG4 as the output format. Set the destination folder and optionally configure resolution, quality, or file naming.

Select CG4 as output format

4. Start ARW to CG4 conversion

Click the Convert button to start. reaConverter will process all your files with the settings you selected.

Start Conversion

When finished, your new .cg4 files will be waiting in the destination folder.

ARW to CG4 Converter

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

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Do more with your images

Converting ARW 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 20, 2026
"Total game-changer! I was stuck with unreadable ARW files until reaConverter transformed them into JPEGs in minutes. Now they’re ready to share anywhere – and the process couldn’t be easier. 10/10!"
Marcus Jackson
Marcus Jackson
Satisfied Customer
"I use reaConverter occasionally and love that it works offline – no internet needed! Installation took just 5 minutes, and now I always have this powerful tool ready for my niche workflow. I mainly convert ARW and other raw files to JPEG, and it’s lightning-fast with zero quality loss. Perfect for when you need reliable conversions without the cloud hassle!"
Eric S. Nelson PhD
Eric S. Nelson PhD
Satisfied Customer
"I inherited a huge archive of ARW files and had no idea how to open them. None of my usual programs would recognize the format. reaConverter saved the day – in just 30 minutes, I recovered the entire archive and converted everything to JPEG. Now my photos work perfectly on phones, computers, and messaging apps. The software is incredibly user-friendly – what a lifesaver!"
Isabella Rodriguez
Isabella Rodriguez
Satisfied Customer
"A must-have offline converter! Installs in 5 mins, handles ARW>JPEG flawlessly, and keeps original quality."
Louis P.
Louis P.
Satisfied Customer
"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
Happy User
"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
R. Lewis
R. Lewis
Happy User

ARW to CG4 Conversion: FAQ

What are ARW files?

ARW is the proprietary format used by Sony cameras to create and store RAW image files — uncompressed images which can be later on adjusted using image editing software. RAW images are popular among photographers because they allow an advanced degree of customization during digital post-processing. However, ARW files, like most RAW images, tend to be very large in size, which makes them difficult to store and transfer.

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 ARW to CG4?

Yes! reaConverter instantly converts .arw 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 ARW to CG4 online?

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

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

The best way to change ARWs 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 ARW to CG4.

How can I automate ARW 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 ARW 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 arw to cg4 converter for batch processing.

What else can I do with reaConverter?

Convert GIS filesConvert CAD formatsSet picture bit depthConvert DICOM imagesResize pictures

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