You could technically use MS Paint. All u need to do is create a new one the size of your signature and while keeping it open, open another one to use to open your pics, cut, and paste. You'll just have to try it out. You'll get the hang of it.
Here's the catch, I use picsaypro on my phone (Droid) so just download the pictures or use my phone to take the pictures. Edit them and load the sig onto the site from my phone. 99% of the time I am on the site, hell all the internet, browsing from my droid phone.
lol no problem ask all the questions u want...but i paid all together like 35$ wich is cheap as faawk and i went into the store to pik out wich patern and fabric i wanted..was in there for like a hour they have millions of diferent paterns
i got about 4-5 yards thats how they measure it at the store...but the fabric is folded in half so ur acually geting more for less
dont be scared to get to much cuz if u mess up or wanna cover something later on u have it rite there