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Convert JNG to CALS

Convert JNG images to CALS format, edit and optimize images online and free.

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JPEG Network Graphics (.jng)

The JPEG Network Graphics (JNG) file extension is designed for storing JPEG-encoded image data within the PNG file format. Introduced as part of the MNG (Multiple-image Network Graphics) format, JNG was created to provide a flexible, high-quality image format that supports both lossy and lossless compression. It is particularly useful in applications requiring the integration of JPEG compression within a wider range of data types and multimedia elements. Though not widely adopted, JNG offers enhanced compatibility and versatility for complex imaging tasks in computer graphics and web development.

JNG Converter More About JNG

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

The CALS (Continuous Acquisition and Life-cycle Support) Type 1 Image file format, developed by the United States Department of Defense in the mid-1980s, is a standard for storing raster (bit-mapped) image data, typically black-and-white. It ensures efficient data interchange and retention of orientation metadata. The format supports both uncompressed and compressed (using CCITT Group 4 compression) images. This standard was part of the broader CALS initiative aimed at improving electronic publishing and data management within the federal government.

CALS Converter

How to convert JNG to CALS?

  1. Upload JNG File

    Choose your JNG image for uploading to our JNG converter.

  2. Select JNG Tools

    Check the file preview quickly and use JNG to CALS tools if you need to change the conversion settings.

  3. Download Your CALS

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

Convert JNG to CALS

Frequently Asked Questions

How to change JNG format to CALS?

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

Convert Files on Desktop

macOS
Windows
Linux

Convert JNG to CALS on macOS

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

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

Convert JNG to CALS 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 JNG file location or include path to your input file.
  3. Paste and execute the command below, substituting in your JNG_INPUT_FILE name or path. $ vertopal convert JNG_INPUT_FILE --to cals

Convert JNG to CALS on Linux

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

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

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