Convert GIF to PGM

The Graphics Interchange Format (GIF) is a bitmap image format developed by CompuServe in 1987. It is widely used for its support of animated images, allowing for the compression of graphics with low file sizes and without compromising quality. It's particularly popular on the internet for memes, short animations, and simple graphics due to its ability to loop animations seamlessly. GIFs support up to 256 colors and use the LZW compression algorithm to minimize file size. The format's historical significance lies in its ability to efficiently store and transmit images in an era of slower internet speeds and remains a staple in digital communication and web design today.

The Portable Graymap (PGM) file extension, originating in the late 1980s as part of the Netpbm project, stands for "Portable Gray Map". It serves as a simple, versatile format for grayscale images, enabling easy reading and writing by various programs. Due to its straightforward structure and plain text encoding, it's often used in academic and research settings where ease of parsing and accessibility are crucial. PGM files store grayscale images in a compact, efficient manner, making them an essential tool for image processing tasks.