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Converting GP4 to CG4

GP4 is an image extension included in the CALS group of formats. CALS (Continuous Acquisition and Life-cycle Support) represents an initiative undertaken by the Department of Defence in the United States in the 1980s, with the aim of creating a standard for storing and linking military data. Similar formats include CG4, CAL and CALS. Most formats that are part of the CALS group are currently considered rare and obsolete.

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.

So, how to change GP4 into CG4?

The quick and simple way to handle your files is to get a quality piece of software, such as reaConverter. Although it is fast, this software is extremely efficient in managing a wide range of conversions. As you will soon realize, reaConverter will help you avoid spending countless hours trying to figure out how to convert GP4s. But at the same time, it will allow you to apply a wide range of editing options.

Download and Install reaConverter

reaConverter is quick to download, install and launch, and you don't need to be an IT specialist in order to understand in a few minutes how it operates.

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Install reaConverter

Load GP4 Files

Start reaConverter and load all the .gp4 files you intend to convert into .cg4 because, as opposed to most free online converters, reaConverter supports batch conversion. So you can save the time and energy you would lose with doing repetitive operations.

Select GP4s from a folder or by drag-and-dropping them directly into the reaConverter window.

Choose Output Folder

Go to the Saving options tab and decide where you want to save new .cg4 files. You can also spend a few more moments to apply additional editing to the images prepared for conversion.

Select CG4 as Output Format

Then pick the CG4 as output format. To help you do this, a series of buttons is conveniently placed at the bottom of the reaConverter window, so you can simply press on the one you need or click Plus button to add new options.

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

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Video tutorial

Command-line interface

Advanced users can convert GP4 to CG4 via command-line interface in manual or automated mode. You are welcome to contact our technical support when you have any questions about reaConverter.

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Highly efficient batch GP4 to CG4 converter that makes it easy to handle huge number of files and folders in a few simple operations.

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