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Convert G4 to CAL

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

Convert G4 to CAL
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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

Continuous Acquisition and Life-cycle Support Type 1 Image (.cal)

The CAL file extension, known as CALS (Continuous Acquisition and Life-cycle Support) Type 1 Image, is a 1-bit black-and-white raster image format developed by the U.S. Department of Defense in the mid-1980s to standardize graphics data interchange for military documentation. It is primarily used for storing and sharing monochrome images while retaining orientation metadata. The format supports both uncompressed and compressed (using CCITT Group 4 compression) images.

CAL Converter

How to convert G4 to CAL?

  1. Upload G4 File

    Drag & drop or browse your device to select and upload your G4 file.

  2. Select G4 Tools

    For advanced customized conversion, use G4 to CAL tools and click Convert.

  3. Download Your CAL

    Once the convert is complete, you can download the final CAL file.

Convert G4 to CAL

Frequently Asked Questions

How to change G4 format to CAL?

To change G4 format to CAL, 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 CAL file afterward.

Convert Files on Desktop

macOS
Windows
Linux

Convert G4 to CAL on macOS

Follow steps below if you have installed Vertopal CLI on your macOS system.

  1. Open macOS Terminal.
  2. Either cd to G4 file location or include path to your input file.
  3. Paste and execute the command below, substituting in your G4_INPUT_FILE name or path. $ vertopal convert G4_INPUT_FILE --to cal

Convert G4 to CAL on Windows

Follow steps below if you have installed Vertopal CLI on your Windows system.

  1. Open Command Prompt or Windows PowerShell.
  2. Either cd to G4 file location or include path to your input file.
  3. Paste and execute the command below, substituting in your G4_INPUT_FILE name or path. $ vertopal convert G4_INPUT_FILE --to cal

Convert G4 to CAL on Linux

Follow steps below if you have installed Vertopal CLI on your Linux system.

  1. Open Linux Terminal.
  2. Either cd to G4 file location or include path to your input file.
  3. Paste and execute the command below, substituting in your G4_INPUT_FILE name or path. $ vertopal convert G4_INPUT_FILE --to cal

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