Before I got a dedicated flash this tutorial saved my butt on more than a few occasions. Here is the external link.
I have used Photoshop extensively, both professionally and personally for simply resizing photos. Having used various programs for this function, I have found Photoshop to to be the most user friendly. The steps are easy and intuitive. Simply load your image into Photoshop, click “Image,” then “Image Size,” decide whether you want to work with pixels or [...]