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Convert G3 to G4

Convert G3 images to G4 format, edit and optimize images online and free.

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CCITT Group 3 Fax Image (.g3)

The G3 file extension refers to the CCITT Group 3 Fax Image, a standardized format developed by the Consultative Committee for International Telegraphy and Telephony (CCITT), now known as ITU-T. This format was created to efficiently compress black-and-white fax documents for transmission over telephone lines. It employs a method called Modified Huffman Coding for data compression, enabling reduced transmission time and bandwidth usage. G3 was widely adopted in the 1980s and 1990s as the primary standard for fax transmissions, ensuring compatibility across different fax machines and systems.

G3 Converter More About G3

CCITT Group 4 Fax Image (.g4)

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.

G4 Converter More About G4

How to convert G3 to G4?

  1. Upload G3 File

    Choose a G3 image and upload it to the converter.

  2. Select G3 Tools

    Apply G3 to G4 tools on the preview page and finalize with Convert.

  3. Download Your G4

    Allow the system to complete the G4 conversion, then download your file.

Convert G3 to G4

Convert G3 to G4 on Desktop

(macOS • Windows • Linux)

With Vertopal CLI installed, you can convert G3 image directly into G4 image.

  1. Start the system console for administration.
  2. Change directory to the G3 file location or add the path.
  3. Copy and run the command after substituting G3_INPUT_FILE. $ vertopal convert G3_INPUT_FILE --to g4

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