Adobe Flash Professional CC 2014 v.13.0 - Manual (Page 560)

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Interlace Incrementally shows the exported GIF file in a browser as it downloads. Lets the user see basic graphic content before the file
completely downloads and can download the file faster over a slow network connection. Do not interlace an animated GIF image.
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
GIF file size. Export an image without smoothing if a halo appears or if you’re placing a GIF transparency on a multicolored background.
Dither Solids Applies dithering to solid colors as well as gradients.
Remove Gradients (Default is off) Converts all gradient fills in the SWF file to solid colors using the first color in the gradient. Gradients
increase the size of a GIF file and are often poor quality. To prevent unexpected results, select the first color of your gradients carefully if
you use this option.
5. To determine the transparency of the application’s background and the way alpha settings are converted to GIF, select one of the following
Transparent options:
Opaque Makes the background a solid color.
Transparent Makes the background transparent.
Alpha Sets partial transparency. Enter a Threshold value between 0 and 255. A lower value results in greater transparency. A value of 128
corresponds to 50% transparency.
6. To specify how pixels of available colors are combined to simulate colors not available in the current palette, select a Dither option. Dithering
can improve color quality, but it increases the file size.
None Turns off dithering and replaces colors not in the basic color table with the solid color from the table that most closely approximates
the specified color. Turning dithering off can result in smaller files but unsatisfactory colors.
Ordered Provides good-quality dithering with the smallest increase in file size.
Diffusion Provides the best-quality dithering but increases file size and processing time. Works only with the web 216-color palette selected.
7. To define the image’s color palette, select one of the following Palette types:
Web 216 Uses the standard 216-color, web-safe palette to create the GIF image, for good image quality and the fastest processing on the
server.
Adaptive Analyzes the colors in the image and creates a unique color table for the selected GIF file. Best for systems displaying thousands
or millions of colors; it creates the most accurate color for the image but increases file size. To reduce the size of a GIF file with an adaptive
palette, use the Max Colors option to decrease the number of colors in the palette.
Web Snap Adaptive Is the same as the Adaptive palette option except it converts similar colors to the web 216-color palette. The resulting
color palette is optimized for the image, but when possible Flash Professional uses colors from the web 216-color palette. This produces
better colors for the image when the web 216-color palette is active on a 256-color system.
Custom Specifies a palette that you optimized for the selected image. The custom palette is processed at the same speed as the web 216-
color palette. To use this option, know how to create and use custom palettes. To select a custom palette, click the Palette folder icon (the
folder icon that appears at the end of the Palette text field), and select a palette file. Flash Professional supports palettes saved in the ACT
format that some graphics applications export.
8. To set the number of colors used in the GIF image, if you selected the Adaptive or Web Snap Adaptive palette, enter a value for Max Colors.
A smaller number of colors can produce a smaller file but can degrade the colors in the image.
9. Click OK.
Specify publish settings for JPEG files (CS5)
The JPEG format lets you save an image as a highly compressed, 24-bit bitmap. Generally, GIF format is better for exporting line art, and JPEG
format is better for images with continuous tones, such as photographs, gradients, or embedded bitmaps.
Flash Professional exports the first frame in the SWF file as a JPEG, unless you mark a different keyframe for export by entering the #Static frame
label.
1. Select File > Publish Settings, click Formats, and select JPEG Image.
2. For the JPEG filename, either use the default filename, or enter a new filename with the .jpg extension.
3. Click the JPEG tab.
Dimensions Enter values for width and height in pixels for the exported bitmap image, or select Match Movie to make the JPEG image the
same size as the Stage and maintain the aspect ratio of your original image.
Quality Drag the slider or enter a value to control the amount of JPEG file compression. The lower the image quality, the smaller the file
size, and the reverse. To determine the best compromise between size and quality, try different settings.
Note: To change the object’s compression setting, use the Bitmap Properties dialog box to set the bitmap export quality per object. The
default compression option in the Bitmap Properties dialog box applies the Publish Settings JPEG Quality option.
Progressive Show Progressive JPEG images incrementally in a web browser, which makes images appear faster when loading with a slow
network connection. Similar to interlacing in GIF and PNG images.
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