Convert CAL to DCX

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 DCX file extension, standing for ZSoft Multi-page Paintbrush Image, is a raster image format developed by ZSoft Corporation. It is primarily used for creating multi-page digital fax files, containing a sequence of PCX images. Each DCX file begins with a small header identifying the file, followed by multiple embedded PCX files. This format was widely adopted in early digital faxing and document imaging applications due to its ability to handle multiple pages within a single file.