I added a gif to the flash library and then saved the file. The .fla file came up as 370 MB. Any reasons and ways to fix it?
I was going to ask you if it was really 370 kb, but before just typing I did a test, so that I could tell you what the normal figures would be. An empty FLA is about 4k, and I imported a 286k gif, expecting the FLA to then be about 300k. It was 65 MB!
In my case I could tell what had happened. The gif I chose was an animated gif, and every frame was imported as a unique bitmap. When I deleted all but the first one, the FLA became 270k.
So, maybe you had picked an animated gif too?
A good option would be to load the image instead of importing it..
Yes, It is animated. Was the file size big because a bitmap was made for every frame?