The file size of a PNG image in Photoshop CS3 depends on its dimensions, which describe its height and width in pixels. To compress the file, reduce its dimensions so that you can display a small or ...

Learn how to compress images and JPEG files to reduce file size, speed up your website and maintain image quality.

Flattening masked layers and the images that accompany them reduces the size of an Adobe Photoshop file. After flattening takes place, the image and masked areas -- that hide parts of an image -- ...