Convert CG4 to FLIF

Convert CG4 to FLIF without quality loss. reaConverter gives you full control over resolution, compression, and output settings.

Tired of converting CG4 files one at a time? reaConverter processes entire folders to FLIF automatically. Handles large batches reliably without crashes or timeouts.

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CG4FLIF

How to Convert Multiple CG4 Images to FLIF?

1. Download and Install reaConverter

First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed. You can also resize, crop, and adjust images during conversion.

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Install reaConverter

2. Load your CG4 files

Launch reaConverter and drop in your CG4 files. The software queues everything for batch processing with consistent settings.

Add files by dragging them in, browsing folders, or using the right-click menu from Windows Explorer.

Load your CG4 files into reaConverter

3. Select FLIF as output format

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

Select FLIF as output format

4. Start CG4 to FLIF conversion

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

Start Conversion

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

CG4 to FLIF Converter

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

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Do more with your images

Converting CG4 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 23, 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
"The step-by-step video makes conversion foolproof. I'd recommend this to my grandma - it's that well-explained!"
DeShawn M. Thompson
DeShawn M. Thompson
Happy User
"I'm really impressed with this software - it converts files between formats incredibly fast!"
Lin Zhang
Lin Zhang
Happy User
"I firmly believe working with JPEG — the universal format supported by all devices and apps—is the wisest choice. reaConverter handles these conversions flawlessly."
Ava Thomas
Ava Thomas
Happy User
"Creating marketing materials for various platforms requires multiple file versions from single sources. reaConverter's workflow automation lets us generate PNG, JPEG, and SVG variants from AI and PSD files simultaneously. The color profile management ensures brand consistency across all outputs, and the processing speed allows for last-minute changes without delaying deadlines."
Rebecca Turner
Rebecca Turner
Marketing Agency CEO
"I was drowning in mismatched file formats until I found reaConverter. The one-click conversion and editing tools simplified everything, and the pricing is reasonable for small businesses. Now I spend less time troubleshooting and more time growing my brand!"
Emily K.
Emily K.
E-commerce Entrepreneur

CG4 to FLIF Conversion: FAQ

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.

What are FLIF files?

FLIF (Free Lossless Image Format) is a royalty-free format launched at the end of 2015 as "work in progress" with the aim of offering a better alternative for storing lossless images than the existing PNG, WebP, BPG, JPEG2000 and JPEG XR. FLIF provides similar image quality as the other extensions, but in a file size than can be up to 74% smaller. The new format uses a form of the Adam7 algorithm for compressing images, offering progressive interlacing that allows users to obtain a reasonable encoding of an image even from a partial download.

Can reaConverter convert CG4 to FLIF?

Yes! reaConverter instantly converts .cg4 to .flif 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 CG4 to FLIF online?

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

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

The best way to change CG4s to FLIFs 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 CG4 to FLIF.

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

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

What else can I do with reaConverter?

Convert CAD formatsSet picture bit depthConvert PDFWatermark imageConvert GIS files

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