Sothink SWF Decompiler enables you to modify SWF resources directly right after previewing them. Switching to Adobe Flash to make a new SWF is not a must. You can edit Shape and Text; replace Image and Sound.
Note: The element modified will be marked by symbol * to remind you of the new change. (See 1 in above image) You can press Reset button to undo it.
Now let's preview the new Flash.
Not clear? Check the link below to view video tutorial.
https://www.sothink.com/tutorials/how-to-edit-flash-video.htm