Software without a license, is what we call pirated software.
If I understood, he is asking if software companies put some sort of hidden code in the final files that could detect piracy, so he is afraid.
Software companies have the name of everyone who purchased the software. I purchased all my software, they have our names and purchase information.
If you don't have money to buy software, use legal free Open Source software. Stop using pirated stuff. Look on the internet for these:
Inkscape is free (alternative to corel and illustrator) for EPS, SVG
GIMP is free (alternative to Photoshop) for JPG
There are some people who use these alternatives on micro stock, I know some clipart artists that do use it....