I need help on this. I installed it for free, but I needed a serial number because it recommends me to do it. As it turns out it's an extended version of it, so how do I get my serial number?
CS3 is an old version of Photoshop 2007 which is no longer marketed.
CS3 is not free. And it is no longer sold.
photoshop cs3 serial code
Printed on the CD case.