Convert XWD to APNG (Animated PNG)

The XWD (X Windows Dump) file extension refers to an uncompressed bitmap image format used by the X Window System to store screen captures or "screen dumps" of windows or backgrounds. Developed by the X Consortium, it captures images of graphical user interfaces on UNIX and Linux platforms. The format, originating with X10 and later used in X11, is known for its large file sizes due to the lack of compression. XWD files are typically used for debugging and documentation purposes within the realm of computer graphics.

Animated Portable Network Graphics (APNG) is an extension of the Portable Network Graphics (PNG) format designed to support animated images. Introduced in 2004, APNG allows for animated sequences while retaining backward compatibility with non-animated PNG files. This format is utilized for its lossless compression, making it ideal for web graphics where image quality is paramount. APNG files are widely used for animated icons, logos, and other elements that benefit from high-quality animations without the artifacts common in GIF files. Its concise, efficient structure makes it a preferred choice among developers and designers focused on optimizing web performance.