Chapter 14: Inserting Images; About Images - MACROMEDIA DREAMWEAVER MX 2004-USING DREAMWEAVER Use Manual

In Macromedia Dreamweaver MX 2004, you can work in Design view or Code view to insert
images in a document. As you add images in a Dreamweaver document, you can set or modify
image properties and view the changes directly in the Document window.
To set up an efficient web design workflow, you can select an image editor preference, and
automatically start it to edit images while you work in Dreamweaver.
This chapter contains the following sections:
•
"About images" on page 303
•
"Inserting an image" on page 305
•
"Resizing an image" on page 309
•
"Cropping an image" on page 310
•
"Optimizing an image using Fireworks" on page 310
•
"Adjusting the brightness and contrast of an image" on page 311
•
"Sharpening an image" on page 311
•
"Creating a rollover image" on page 312
•
"Using an external image editor" on page 313
•
"Applying behaviors to images" on page 313

About images

Many different types of graphic file formats exist, but three graphic file formats are generally used
in web pages—GIF, JPEG, and PNG. Currently, GIF and JPEG file formats are the best
supported and can be viewed by most browsers.
PNG files are best suited for almost any type of web graphic due to their flexibility and small file
size; however, the display of PNG images is only partially supported in Microsoft Internet
Explorer (4.0 and later browsers) and Netscape Navigator (4.04 and later browsers). So unless you
are designing for a specific target audience using a browser that supports the PNG format, use
GIFs or JPEGs for broader accessibility.
GIF (Graphic Interchange Format)
displaying noncontinuous-tone images or those with large areas of flat colors, such as navigation
bars, buttons, icons, logos, or other images with uniform colors and tones.
files use a maximum of 256 colors, and are best for
CHAPTER 14
Inserting Images
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