JPEGmini for Windows is a software application that reduces the file size of JPEG images without significantly impacting their visual quality. It uses a patented compression algorithm to achieve this, making it useful for anyone who needs to save storage space, send images via email, or upload images to the web more quickly. The smaller file size means faster upload and download times. While it doesn[SQ]t offer editing features like Photoshop, its core function is highly specialized and efficient image compression.