Currently, many people use proprietary software that denies users these freedoms and benefits. If we make a copy and give it to a friend, if we try to figure out how the program works, if we put a copy on more than one of our own computers in our own home, we could be caught and fined or put in jail. That’s what’s in the fine print of the license agreement you accept when using proprietary software.
A special issue arises when a license requires changing the name by which the program will be invoked from other programs. That effectively hampers you from releasing your changed version so that it can replace the original when invoked by those other programs. This sort of requirement is acceptable only if there's a suitable aliasing facility that allows you to specify the original program's name as an alias for the modified version.

Adobe created the PDF format, so it stands to reason it would still offer a pretty kick-ass free PDF reader, albeit one that's not as full-featured as some others, since it has other tools it wants to sell you. (The DC stands for Document Cloud, Adobe's attempt to get you to store everything online via Adobe.) Using it, you can easily annotate or sign PDFs, fill out forms, or even save a PDF to Word or TXT format.
I don’t mind doing surveys as long as I know I have to do them up front don’t email me or text me and say I won something for you giving me a free gift card or sending me something free in the mail and then you ask for my credit card or did you order for me to get anything I have to do thousands of an answer a lots of questions and their personal questions I think that is so disrespectful and sneaky and scammy and it really shouldn’t even be able to be posted on the Internet or sent to anyone on over the online.if I have to fill out surveys or anything besides give you my information where to send my free merchandise then it’s not free it’s basically a trade in order for me to get the free merchandise I have to give you my time in answering a survey questions or excetera if that’s the case just be upfront and honest and say that don’t say it there’s no strings attached and that I won something and where you sending me something free because I’ve never get it.