Smallpdf - PDF document management and conversion suite
TinyJPG - Compress JPEG images with perfect quality and file size
iLovePDF - Free online PDF tool set
Promo Instant Image Resizer - Automatically optimize images for web & social media (free!)
Kingshiper Image Compressor - With Kingshiper Image Compressor, you can easily compress, optimize and reduce jpg, jpeg, png, svg and gif file to a smaller size in seconds.
Compressor - Compressor adds power and flexibility to Final Cut Pro X export.