Have just bought Squash: Excellent. I use lots of images, and I need them to be of optimal quality for my website.
• Squash has an easy to use sliding scale 0-100%. But how do I determine what % to use? Is it a case of trial and error?
• DPI: I understand that PC screens aren’t 300dpi, so a web image need only be 72dpi (I believe?). Does Squash reduce the dpi of images or should I do that myself before I drop images into Squash?
• Does the suffix ‘-squashed’ bring anything to my SEO?
• What does ‘Remove Jpeg Metadata’ mean and achieve?