Is it allowed to copy original Adobe software(photoshop, illustrator) to a blank CD/DVD for back up?
So the original files wouldn't be harmed, if anything happenes at the work place.
Welcome to the forum.
Unless things have changed (they do from time to time), a backup copy is allowed by the EULA. That should be across the entire Adobe portfolio.
Click on the desired product. Some companies do allow making a backup copy, others you can but other don't and will send you a replacement DVD/CD for a fee for pressing a new disk.