Resize artwork while optimizing, Generate css layers for web graphics – Adobe Photoshop CS4 User Manual
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USING PHOTOSHOP CS4
Web graphics
Last updated 1/10/2010
7
Select a Use option to specify whether you want to apply the specified file size to current slice only, to each slice in
the image, or to all slices. Click
OK.
Resize artwork while optimizing
In the Save For Web & Devices dialog box, you can resize an image to specified pixel dimensions or to a percentage of
the original size.
1
Click the Image Size tab in the Save For Web & Devices dialog box.
2
Set any of the additional options:
Constrain Proportions
Maintains the current proportions of pixel width to pixel height.
Quality
(Photoshop only) Specifies the interpolation method. Bicubic Sharper generally produces better results when
you are reducing image size.
Anti-Alias
(Illustrator only) Removes jagged edges in the artwork by applying anti-aliasing.
Clip To Artboard
(Illustrator only) Clips the artwork size to match the document’s Artboard boundary. Any artwork
outside the Artboard boundary will be deleted.
Note: None of the features in the Image Size palette are available for the SWF and SVG file formats except Clip To
Artboard.
3
Enter new pixel dimensions or specify a percentage by which to resize the image, and click Apply.
Generate CSS layers for web graphics
You can use layers in your Illustrator artwork to generate CSS layers in the resulting HTML file. A CSS layer is an
element that has an absolute position and can overlap with other elements in a web page. Exporting CSS layers is useful
when you plan to create dynamic effects in your web page.
The Layers palette in the Save For Web & Devices dialog box gives you control over which top-level layers in your
artwork are exported as CSS layers, and whether exported layers are visible or hidden.
1
Click the Layers tab in the Save For Web & Devices dialog
box.
2
Select Export As CSS Layers.
3
Select a layer from the Layer pop-up menu, and set the following options as desired:
Visible
Creates a visible CSS layer in the resulting HTML file.
Hidden
Creates a hidden CSS layer in the resulting HTML file.
CSS layers are the same as GoLive layers. Using Adobe GoLive, you can animate a CSS layer and use built-in
JavaScript actions to create interactive effects.
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