Convert G4 to PCD

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 PCD (Photo CD) file extension, developed by Kodak, is used for storing digital images on a Photo CD. This format was introduced in the early 1990s to digitize and archive physical photographs. PCD files contain high-resolution images scanned from film, typically at resolutions of 3072 x 2048 pixels or higher. These files are utilized for preserving, viewing, and editing images using compatible software. The PCD format supports 24-bit color and includes multiple resolutions within a single file, facilitating versatile image processing and archival purposes.