Convert to CAL
Convert any image to CAL 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.
Select a file from your computer to begin the conversion process.
Select any CAL tools to refine the file, then click Convert.
When the status shows success, download the CAL image.
Once Vertopal CLI is configured, convert files into CAL image format.