https://www.pdffiller.com

Anyone that knows about this PDF format to fill in the adobe pdf.
When you hit save does this save all your information on some unknown server? Or who has access to view this? I havent paid for it yet but I like the way it fills in the application. But I dont want all my information saved on some unknown place? I cant seem to just save the program on my computer to fill it in then or does that happen once you pay the 10 dollars? Thats for any info...