Convert G4 to J2K
Convert G4 images to J2K format, 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.
The J2K file extension stands for JPEG 2000 Code Stream Syntax, a part of the JPEG 2000 standard developed by the Joint Photographic Experts Group (JPEG). Introduced in 2000, JPEG 2000 offers superior image compression and quality compared to the original JPEG format. The J2K codestream is highly flexible, supporting both lossy and lossless compression, and allows for scalable decoding, which means images can be efficiently accessed at various resolutions and quality levels. This makes J2K ideal for applications requiring high-quality image storage and transmission, such as medical imaging, digital cinema, and satellite imagery.
Choose the G4 image you wish to convert.
Use any available G4 to J2K tools on the preview page and click Convert.
When the conversion status changes to successful, click on the Download button to get the final J2K image.
To change G4 format to J2K, upload your G4 file to proceed to the preview page. Use any available tools if you want to edit and manipulate your G4 file. Click on the convert button and wait for the convert to complete. Download the converted J2K file afterward.
Follow steps below if you have installed Vertopal CLI on your macOS system.
cd to G4 file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to G4 file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to G4 file location or include path to your input file.