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Convert PJPEG to CAL

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

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Progressive JPEG (.pjpeg)

The PJPEG (Progressive JPEG) is a file extension for images that enhances the standard JPEG format by displaying images in successive waves of increasing detail, improving the user experience during slow network conditions. The JPEG stands for "Joint Photographic Experts Group", the organization that developed the standard in 1992. PJPEG is particularly useful for web applications, as it allows images to appear more quickly and progressively refine in quality, rather than loading from top to bottom like baseline JPEGs.

PJPEG Converter

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 PJPEG to CAL?

  1. Upload PJPEG File

    Choose the PJPEG image you want to convert by browsing your device.

  2. Select PJPEG Tools

    Select tools to convert your PJPEG image into a CAL image, then click Convert.

  3. Download Your CAL

    Click Download after the CAL conversion ends to get your file.

Convert PJPEG to CAL

PJPEG to CAL Conversion Tools

PJPEG Rotate

Rotate PJPEG to right (90° clockwise), to left (90° counter-clockwise), 180°, and convert it to CAL.

PJPEG Flip

Flip PJPEG vertically and/or horizontally (flop), and convert it to CAL.

Convert PJPEG to CAL on Desktop

(macOS • Windows • Linux)

Prepare Vertopal CLI to process PJPEG image and deliver CAL image.

  1. Access the Terminal application for management.
  2. Navigate to the PJPEG folder or specify the input file path.
  3. Run the command after replacing PJPEG_INPUT_FILE with the correct path. $ vertopal convert PJPEG_INPUT_FILE --to cal

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