Convert EPSF to G4

An EPSF, or Encapsulated PostScript File, is a graphics file format used primarily in the publishing and printing industries for embedding high-resolution images within other PostScript documents. Introduced by Adobe Systems in the late 1980s, EPSF files enable seamless integration of complex visual elements, maintaining quality and device independence. They encapsulate both vector and raster graphics, allowing detailed illustrations and photographs to be embedded without loss of resolution, facilitating professional-quality output across various platforms and devices.

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.