G4 Converter
Convert G4 images to a variety of formats, edit and optimize images online and free.
Drop Files Anywhere to Upload
The G4 file extension, standing for CCITT Group 4 Fax Image, is a specialized format used primarily for storing black-and-white facsimile (fax) images. Its origins trace back to the Consultative Committee for International Telegraphy and Telephony (CCITT), now known as the ITU-T, which developed the Group 4 standard in the 1980s to improve fax transmission efficiency over digital networks. This format employs a high compression ratio to reduce file size while maintaining image quality, making it ideal for archiving documents and transmitting faxes in professional and business environments.
Click Choose File and select the G4 file required for conversion.
Select the conversion format that matches your G4 file requirements.
Once processing is finished, the file will be available for download.
Prepare your system with Vertopal CLI before converting G4 image.