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For example, a JPEG image that is 150 pixels by 150 pixels might have a file size of 30k.You could resize this image in Dreamweaver by 50% and the result would be a thumbnail image displayed at 75 pixels by 75 pixels.For more Adobe Dreamweaver training options, visit AGI’s Dreamweaver Classes. Just as lists make content friendlier and more accessible, images help to give your visitors the rich, visual experience that they’ve come to expect on the Web.However, before you learn to insert images, you will briefly learn about web graphics.A high-quality image preserves more information and results in a larger file size.
The width and height attributes are simply the width and height of the image, which have automatically been added by Dreamweaver. Double-click the images folder in the Files panel to reveal its contents.
The PNG format is closer to GIFs in that it offers lossless compression and comes in two categories: 8 bit and 24 bit.
This means it can be used quite effectively for simple graphics as well as continuous tone photographic images.
However, reproducing sharp edges and solid areas of color often requires a higher quality setting. Instead, GIFs rely on a maximum of 256 colors to reduce the size of images.
This means that images with a limited number of colors can be reproduced without degradation.