I downloaded a version of Photoshop CS3, but they did not provide a serial number. Without thinking, I looked up an appropriate serial number on the internet and typed it in, only to realize afterwards that what I had done might not be legal. So my question is, is it legal to do this or not?
That would depent on the serial number that you used for the software if it's legit or not. Photoshop serial number or license keys are being sold so if you found it by searching on the website then mostlikely it is not an authentic serial key which would mean its ilegal.
Wait a minute ...if someone would be selling the serial number online why would he/she would make it public so that anyone can use.
There are various keygen present online that can generate such kind of serial number but using them is stricly illegal.....without knowing the source it would be hard to tell.
You can try and get is touch with the "Jeff Wright" , he is a Adobe employee who actively participate in forums....He can check that serial number and can let you know , is it legit or not
also you can let us know the source from where you have got the serial number ...
Actually Manish I would recommend contacting our support team to have the serial number verified. For the best assistance, I recommend our chat support at http://adobe.ly/yxj0t6. Our chat representatives can provide a personalized experience to resolve the issue you have described.
I would also agree with Willyjp's point as well but you are certainly able have the serial number checked by our support team.