Convert NTF to CG4

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

Batch NTF to CG4 conversion doesn't have to be complicated. reaConverter processes entire folders with consistent quality settings. Works offline with no internet required — convert anywhere, anytime.

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NTFCG4

How to Convert Multiple NTF Files to CG4?

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.

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Install reaConverter

2. Load your NTF files

Load your NTF files into reaConverter. You can add individual files or point to folders, and the software will queue everything automatically.

Select NTFs from a folder or drag-and-drop them directly into the reaConverter window.

Load your NTF files into reaConverter

3. Select CG4 as output format

Choose CG4 for output and set your save location. reaConverter lets you customize quality and apply edits before conversion.

Select CG4 as output format

4. Start NTF to CG4 conversion

Press the Convert button and reaConverter takes care of the rest. Processing time depends on file size and volume.

Start Conversion

After processing, find all your new .cg4 files in the output location. The log shows details for each conversion.

NTF to CG4 Converter

reaConverter offers the fastest, simplest solution for converting your NTF 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 NTF 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 January 20, 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.
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"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.
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"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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"An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!"
Logan B.
Logan B.
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"I use the online converter — it’s quick and hassle-free!"
Jian Wong
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NTF to CG4 Conversion: FAQ

What are NTF files?

The NTF (National Transfer Format) was created by the British Standards Institution for the transfer of spatial information. NTF currently represents the standard format used by Ordnance Survey (OS), the national mapping agency for Great Britain and one of the biggest producers of maps in the world.

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 NTF to CG4?

Yes! reaConverter instantly converts .ntf 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 NTF to CG4 online?

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

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

The best way to change NTFs 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 NTF to CG4.

How can I automate NTF 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 NTF 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 ntf to cg4 converter for batch processing.

What else can I do with reaConverter?

Change format settingsChange DPIConvert DICOM filesChange photo sizeConvert GIS files

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