Having the ability to add small animations to a PDF (portable document format, independent of application software, hardware, and operating systems) would make it the perfect solution for making extremely useful user guides. Some text, some images, and some animations/videos, all in one file that can be read by anybody on any computer.
As of acrobat pro version x, a gif can be added under Tools > Insert from File. But the gif wont play, it only shows the first image.
