MACROMEDIA FLASH 8-USING FLASH Use Manual page 202

Setting bitmap properties
You can apply anti-aliasing to an imported bitmap to smooth the edges in the image. You can
also select a compression option to reduce the bitmap file size and format the file for display
on the web.
To select bitmap properties, you use the Bitmap Properties dialog box.
To set bitmap properties:
1.
Select a bitmap in the Library panel.
2.
Do one of the following:
Click the properties icon at the bottom of the Library panel.
Right-click (Windows) or Control-click (Macintosh) the bitmap's icon and select
Properties from the context menu.
Select Properties from the options menu in the upper right corner of the Library
panel.
3.
In the Bitmap Properties dialog box, select Allow Smoothing to smooth the edges of the
bitmap with anti-aliasing.
4.
For Compression, select one of the following options:
Photo (JPEG)
compresses the image in JPEG format. To use the default compression
quality specified for the imported image, select Use Document Default Quality. To specify
a new quality compression setting, deselect Use Document Default Quality and enter a
value between 1 and 100 in the Quality text box. (A higher setting preserves greater image
integrity but yields a larger file size.)
Lossless (PNG/GIF)
discarded from the image.
Use Photo compression for images with complex color or tonal variations, such as
photographs or images with gradient fills. Use Lossless compression for images with
simple shapes and relatively few colors.
5.
Click Test to determine the results of the file compression. Compare the original file size
to the compressed file size to determine if the selected compression setting is acceptable.
6.
Click OK.
JPEG Quality settings that you select in the Publish Settings dialog box do not
specify a quality setting for imported JPEG files. You must specify a quality setting
for imported JPEG files in the Bitmap Properties dialog box.
202 Using Imported Artwork
compresses the image with lossless compression, in which no data is