Create web graphics with Photoshop – The Fundamentals
Part 2 – Save image for the web / Optimize image for the web
Already know about different image types supported by web browsers, below are some simple steps to save your images for the web with Photoshop.
To save image for the web or to optimize it for the web, you just need to open your image in Photoshop, then go to menu File > Save for Web or File > Save for Web & Devices with CS4, or you can use the combination of keys Ctrl Alt Shift S. No matter what versions of Photoshop you’re using, a dialog box will appear to let you change your image settings and your image size. That’s basically it.