I have looked around the Internet and can't seem to find anything on this subject. Basically, I want to have a host device (my iMac or iPad or whatever is needed) that can send a file (pdf) to several devices at once. I don't mind buying additional equipment if it's needed I am just not sure what to get. I would like to send to at least 100 devices at once (mix of android, iPhone and iPad), but I can benefit from sending to a dozen or so if that's all that is possible. I know that there are apps that are capable of doing this, but I would like to avoid them if possible. I would simply like to send/broadcast a file via Bluetooth or wifi or whatever so that people could download it. If anyone has any ideas of software that I need to get or hardware I need to buy, I would appreciate it.