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Convert CAL to JBG

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

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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

Joint Bi-level Image Group (.jbg)

The JBG file extension stands for Joint Bi-level Image Group, a format developed for efficient lossless compression of binary images, primarily used in fax transmissions. Introduced by the Joint Bi-level Image Experts Group, JBG files store 1-bit raster images and offer superior compression compared to older standards like CCITT Group 3 and 4. Although initially popular for fax machines, the format has largely been superseded by JBIG2, which provides even better compression.

JBG Converter

How to convert CAL to JBG?

  1. Upload CAL File

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

  2. Select CAL Tools

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

  3. Download Your JBG

    After the convert is complete, click on the Download button to get your JBG image.

Convert CAL to JBG

Frequently Asked Questions

How to change CAL format to JBG?

To change CAL format to JBG, upload your CAL file to proceed to the preview page. Use any available tools if you want to edit and manipulate your CAL file. Click on the convert button and wait for the convert to complete. Download the converted JBG file afterward.

Convert Files on Desktop

macOS
Windows
Linux

Convert CAL to JBG on macOS

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

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

Convert CAL to JBG 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 CAL file location or include path to your input file.
  3. Paste and execute the command below, substituting in your CAL_INPUT_FILE name or path. $ vertopal convert CAL_INPUT_FILE --to jbg

Convert CAL to JBG on Linux

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

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

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