Can I snapshot the shape from a dynamic text field?

So I'm looking to buold some dyanmic small swf files, where the user can edit the text and font in an app, then serve this small swf out. Since embedding a font adds about 70kb, I guess I could take a bitmap snapshot and save this on the server.

However, is there a way with this Text Layout Framework to somehow grab the glyph shapes from a dynamic textfield and the use this as a vector shape?

I've seen a system like http://www.adready.com/ads/public?record_activity=clicked_diy_get_started_button_a_ads_first 

Which has an endless amount of fonts and is able to spit out a tiny swf in the end... Which seems to be vector.