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Convert SIX to CALS

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

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DEC Six Pixels (.six)

The SIX file extension, short for "six pixels", is a bitmap graphics format developed by Digital Equipment Corporation (DEC) for their terminals and printers. Introduced initially to send bitmap graphics to DEC dot matrix printers like the LA50, SIX later facilitated the transfer of soft fonts to terminals such as the VT220. This format encodes images using a series of six-pixel-high patterns, making it efficient for transmitting graphics over 7-bit serial links. Rediscovered around 2010, SIX remains in use with modern terminal emulators for tasks like video playback.

SIX Converter

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 SIX to CALS?

  1. Upload SIX File

    Select any SIX file from your device to start uploading it.

  2. Select SIX Tools

    Before clicking the Convert button, use any available SIX to CALS tools.

  3. Download Your CALS

    When the conversion status changes to successful, click on the Download button to get the final CALS image.

Convert SIX to CALS

Frequently Asked Questions

How to change SIX format to CALS?

To change SIX format to CALS, upload your SIX file to proceed to the preview page. Use any available tools if you want to edit and manipulate your SIX 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 SIX 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 SIX file location or include path to your input file.
  3. Paste and execute the command below, substituting in your SIX_INPUT_FILE name or path. $ vertopal convert SIX_INPUT_FILE --to cals

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

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

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