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Convert PNM to CAL

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

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Portable Anymap (.pnm)

The PNM (Portable Anymap) file extension, developed by Jef Poskanzer in the 1980s, stands for Portable Any Map. It is an uncompressed raster graphics format designed for portable image storage and exchange, encompassing three sub-formats: PBM (Portable Bitmap), PGM (Portable Graymap), and PPM (Portable Pixmap). PNM files store image data in plain text or binary format, ensuring easy usage across different platforms and applications. This format is widely supported by various image editing software and is valued for its simplicity and lossless compression.

PNM Converter More About PNM

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 PNM to CAL?

  1. Upload PNM File

    Select a PNM image from your computer, or drag & drop it on the page.

  2. Select PNM Tools

    Use the tools available for converting PNM to CAL and click the Convert button.

  3. Download Your CAL

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

Convert PNM to CAL

Frequently Asked Questions

How to change PNM format to CAL?

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

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

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

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