Adobe 65011817 - Fireworks CS4 - Mac Using Manual page 229

USING FIREWORKS CS4
Optimizing and exporting
For GIF images, use index transparency, which turns on or turns off pixels with specific color values.
GIF images are exported without transparency by default. Even if the canvas behind an image or object appears
transparent in Original view in Fireworks, the background for that image may not be transparent unless you select
Index Transparency before export.
For PNG files, you can use alpha transparency, which is often used in exported graphics that contain gradient
transparency and semi-opaque pixels. Although the transparency is not very useful for export to the web (because most
web browsers do not support PNG format), it is useful for export to Flash or Adobe Director, because both applications
support this type of transparency.
Note: Setting colors to transparent affects only the exported version of the image, not the actual image. To see what the
exported image will look like, use a preview.
More Help topics
"Export from the workspace" on page 227
Make an image background transparent
Click the Preview, 2-Up, or 4-Up button at the upper left of the document window. In 2-Up or 4-Up view, click a
1
view other than the original.
2 In the Optimize panel (Window > Optimize), select GIF or PNG 8 as the file format. Then select Index
Transparency from the Choose Type Of Transparency pop-up menu.
The canvas color is made transparent in the preview, and the graphic is ready for export.
Select a color for transparency
1 Click the Preview, 2-Up, or 4-Up button at the upper left of the document window. In 2-Up or 4-Up view, click a
view other than the original.
In the Optimize panel (Window > Optimize), select GIF or PNG 8 as the file format. Then select Index
2
Transparency from the Choose Type Of Transparency pop-up menu.
To select a different color, click the Select Transparency Color button
3
4 Click a color swatch in the Optimize panel color table, or click a color in the document.
Add or remove transparent colors
1 Click the Preview, 2-Up, or 4-Up button at the upper left of the document window. In 2-Up or 4-Up view, click a
view other than the original.
Note: Though you can add or remove transparent colors in Original view, you won't see the results until you display
a preview.
2 In the Optimize panel (Window > Optimize), select GIF or PNG 8 as the file format. Then select Index
Transparency from the Choose Type Of Transparency pop-up menu.
3 At the bottom of the panel, click the Add Color To Transparency
button .
Click a swatch in the color table, or click a color in the document preview.
4
Interlace images to download gradually
When viewed in a web browser, interlaced images display at a low resolution first and then transition to full resolution
by the time the download is complete.
Last updated 3/8/2011
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or Remove Color From Transparency
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