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Converting ERF to CG4

ERF is the proprietary RAW image format for Epson cameras. An ERF file contains an uncompressed image which can be processed using an advanced image editing software and can be printed using an Epson printer. Many professional photographers prefer to shoot in RAW mode because this allows a better control over the creative editing of the image, and more freedom to customize and transform the image using aspects such as color correction and white balance before converting to a more popular format.

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 ERF 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 ERFs. 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 ERF Files

Start reaConverter and load all the .erf 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 ERFs 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 ERF 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 ERF to CG4 converter that makes it easy to handle huge number of files and folders in a few simple operations.

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