Convert WMF to CAL

The Windows Metafile (WMF) is a graphic file format used by Microsoft Windows to store vector and bitmap image data. Originating in the late 1980s, WMF files enable the efficient exchange of graphical content between applications. They serve functions like clip art storage, image rendering in documents, and transferring graphics across different software platforms. Designed to be device-independent, WMF ensures consistent image presentation regardless of the output device, maintaining visual fidelity across varying screen resolutions and printer outputs. As a legacy format, its use has diminished with the advent of more advanced graphical file formats.

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.