Convert CALS to PSD

The CALS (Continuous Acquisition and Life-cycle Support) Type 1 Image file format, developed by the United States Department of Defense in the mid-1980s, is a standard for storing raster (bit-mapped) image data, typically black-and-white. It ensures efficient data interchange and retention of orientation metadata. The format supports both uncompressed and compressed (using CCITT Group 4 compression) images. This standard was part of the broader CALS initiative aimed at improving electronic publishing and data management within the federal government.

The PSD file extension stands for Photoshop Document, which is the native file format for Adobe Photoshop. It is primarily used to save graphics and images, preserving layers, masks, transparency, and other editing features, allowing for non-destructive editing. Introduced in 1988 with Photoshop's first release, PSD files have since become a standard in the graphic design and digital imaging industry due to their flexibility and support for various color modes and channels, including RGB, CMYK, and grayscale.