+-z --zlib <zlib>
+ Enable Flash 6 (MX) Zlib Compression
+ Use Flash MX (SWF 6) Zlib encoding for the output. The resulting SWF will be
+ smaller, but not playable in Flash Plugins of Version 5 and below.
+-x --xoffset <offset>
+ horizontally offset images by <offset>
+-y --yoffset <offset>
+ vertically offset images by <offset>