Convert CAL to PGM
Convert CAL images to PGM format, edit and optimize images online and free.
Drop Files Anywhere to Upload
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.
The Portable Graymap (PGM) file extension, originating in the late 1980s as part of the Netpbm project, stands for "Portable Gray Map". It serves as a simple, versatile format for grayscale images, enabling easy reading and writing by various programs. Due to its straightforward structure and plain text encoding, it's often used in academic and research settings where ease of parsing and accessibility are crucial. PGM files store grayscale images in a compact, efficient manner, making them an essential tool for image processing tasks.
Select any CAL file from your device to start uploading it.
For advanced customized conversion, use CAL to PGM tools and click Convert.
After the convert is complete, click on the Download button to get your PGM image.
To change CAL format to PGM, 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 PGM file afterward.
Follow steps below if you have installed Vertopal CLI on your macOS system.
cd to CAL file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to CAL file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to CAL file location or include path to your input file.