p.1 #1 · Photoshop CS3 Vs CS6 Jpeg output differences
This will sound strange, but I have been loading images to Flickr for a few years now, and just recently switched over to CS6. I always size my images to around 1024 x 768 to goto Flickr.
But the new images sent to there from CS6 just don't look as good as the ones I did from CS3.
I always save them at the highest level of Jpeg, I think its 12.
So why don't they look as good ?
p.1 #2 · Photoshop CS3 Vs CS6 Jpeg output differences
Do a simple test process the same image is CS6 and CS3 the same way and pots them to Flickr. Do a side by side compare. The download the images load them into Photoshop on top of each other and set blending mode to difference.