Recently I worked on a flash banner. As we all know, there is a size limitation for all banner files. The max file size for this particular banner is 20K.
After I published the swf, I found out that the file size was 22K. So I had to trim 2 K. Here are few tricks that I used to cut the file size from 22K to 17K: That movie used 4 different fonts. I broke down the text into shapes so flash wouldn’t need to include the data for entire character shape for each font.
Simplified some gradients.
Optimized shapes. The logo symbol used in this banner had many overlapping shapes. Since the logo size was relatively small, simplifying the logo shapes wouldn’t change its appearance.
Minimize the use of bitmap/raster images
Re-optimize raster images used in the movie and re-import it.