MACROMEDIA FLASH MX 2004-USING FLASH Use Manual page 323

To publish a PNG file with your Flash SWF file:
Do one of the following to open the Publish Settings dialog box:
1.
Select File > Publish Settings.
In the Property inspector for the document (which is available when no object is selected),
click the Settings button.
Note: To create a publish profile for the publish settings that you specify, see
profiles" on page 327.
On the Formats tab, select the PNG Image type. For the PNG filename, either use the default
2.
filename, or enter a new filename with the .png extension.
Click the PNG tab. For Dimensions, enter values for width and height in pixels for the exported
3.
bitmap image, or select Match Movie to make the PNG image the same size as the Flash SWF
file and maintain the aspect ratio of your original image.
Select a bit depth to set the number of bits per pixel and colors to use in creating the image:
4.
Select 8-bit for a 256-color image.
Select 24-bit for thousands of colors.
Select 24-bit with Alpha for thousands of colors with transparency (32 bits).
The higher the bit depth, the larger the file.
Select one of the following options to specify appearance settings for the exported PNG:
5.
Optimize Colors
removes any unused colors from a PNG file's color table. This option reduces
the file size by 1000 to 1500 bytes without affecting image quality but increases the memory
requirements slightly. This option has no effect on an adaptive palette.
Interlace incrementally shows the exported PNG in a browser as it downloads. Interlacing lets
the user see basic graphic content before the file has completely downloaded and
might download the file faster with a slow network connection. Do not interlace an animated
PNG file.
Smooth applies anti-aliasing to an exported bitmap to produce a higher-quality bitmap image
and improve text display quality. However, smoothing might cause a halo of gray pixels to
appear around an anti-aliased image placed on a colored background, and it increases the PNG
file size. Export an image without smoothing if a halo appears or if you're placing a PNG
transparency on a multicolored background.
Dither Solids applies dithering to solid colors and gradients. For more information, see Dither
options in step 6.
Remove Gradients
to solid colors using the first color in the gradient. Gradients increase the size of a PNG and are
often poor quality. If you use this option, select the first color of your gradients carefully to
prevent unexpected results.
, which is turned off by default, converts all gradient fills in the application
"Using publish
Publishing Flash documents 323