The Image Properties dialog box enables you to set properties for the new image, or modify properties of the selected image.

This dialog box contains the following sections:

In the Size section you can set the width and height of the image (in pixels).

In the File Format section choose JPEG or GIF format. If the GIF option is selected you may also define the Color Count attribute:

The Background Color section enables you to set the background color of your image.

You can set background color the same as image worksheet color (see Preferences). Choose the Same as image worksheet color radio button. To set a custom background color, click the Select a different color radio button, and choose a color by pressing black colored sample box on the right . The Choose Color dialog box opens up. Choose a color from the pallete.
To make the background transparent, choose Make it transparent. This feature is available only for 256-color GIF format.

JPEG Control section

If you were using a photograph or a detailed artwork, you may want to use JPEG format instead. JPEGS provide crisper and cleaner images on the web page. However, they are about two to three times larger in size (memory) and take longer to be viewed by the viewer.

Select Encoding Method:

Select the Quality Factor - the smaller file is, the lower is quality; the higher quality is, the larger is file.

Changing the properties of an image resource will effect the adequate modifications for that image throughout the site project.