The question doesn't make sense.
There are many threads showing schematics from any available software or even paint programs, this is up to the user and not related to the forum at all.
By wiring diagram software do you refer to something else?
I take it for granted because in this Italian forum www.electroyou.it we use "Fidocadj". This is very simple to use, it support copy and past. So, can I use it for image to post?