Also, there is no such
thing as an optimum size for web images. If you??™ve read in the past that no web image
should ever be larger than 50 KB, it??™s hogwash. The size of your images depends entirely
on context, the type of site you??™re creating, and the audience you??™re creating it for.
There are exceptions to this rule, however, although they are rare. For instance, if you
work with pixel art saved as a GIF, you can proportionately enlarge an image, making
it large on the screen. Despite the image being large, the file size will be tiny.
THE ESSENTIAL GUIDE TO CSS AND HTML WEB DESIGN
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Text overlays and splitting images
Some designers use various means to stop people from stealing images from their site and
reusing them. The most common are including a copyright statement on the image itself,
splitting the image into a number of separate images to make it harder to download, and
adding an invisible transparent GIF overlay.
The main problem with copyright statements is that they are often poorly realized (see the
following example), ruining the image with a garish text overlay. Ultimately, while anyone
can download images from your website to their hard drive, you need to remember that if
someone uses your images, they??™re infringing your copyright, and you can deal with them
accordingly (and, if they link directly to images on your server, try changing the affected
images to something text-based, like ???The scumbag whose site you??™re visiting stole images
from me???).
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