You can save bitonal images within a drawing to simplify file management.
The regular Save operations save drawings and their associated images as separate files, often in different directories. This structure can be difficult to manage if you need to transfer drawings and images to other locations and retain the file relationships. Image embedding (iembed command) provides an alternative for bitonal images by saving them within the host drawing.
An embedded image can be removed from its host drawing and saved as an separate file by using the Un-embed (iunembed) or Save As (isaveas) commands.