Convert CAL to ART
Convert CAL images to ART 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 ART file extension, associated with PFS: 1st Publisher, stands for "AOLpress Raster Technology". Developed by America Online (AOL), this format was designed to optimize image download speeds over slow internet connections by employing high compression ratios. ART files store single, highly compressed images, allowing for incremental rendering similar to progressive JPEGs. While it was useful in the past, the ART format has largely been replaced by more modern image formats.
Click Choose File and pick the CAL image required for conversion.
Select tools to convert your CAL image into a ART image, then click Convert.
Wait for the converter to finalize, then access your ART image.
Vertopal CLI enables structured conversion from CAL image to ART image.