Considering that the image frames (most, not all though?) already exist, you 
would need to redo the animation from the start.
Using Lewis' suggestion, however, can still work by rendering only image_maps 
of the whole animation (a very fast way to re-do an animation). I made a thing 
I call "inxframe", an include file to do just this in a few different ways.
Only problem with it is figuring it out and getting it to work right. I more 
or less got to a point with it and stopped, but if you look at the example I 
have at the top of my links page you can see what is possible:

 http://members.aol.com/inversez/index.html

Hope you can use it if you try it.

Message <36375b6e.2519072@news.povray.org>, Lewis Sellers typed...
>
>On Wed, 28 Oct 1998 07:13:58 -0800, "Mike Weber"
><mwe### [at] racal-pelagoscom> wrote:
>
>>I plan on entering the current round for the competition.  When I'm done
>>with my work, I plan to put it on my web-page.  But I don't want someone
>>taking it and using it without some recognition.  This has happened to me
>>before - someone put a link from their site to mine and used two of my GIF
>>animations.  So, I'd like to put my signature or name into each from of my
>>animation.  Does anyone know of a DOS or Windows tool that will allow me to
>>easily place text or superimpose an image into the corner of all my images
>>for an animation?  Currently my animation is at 360 frames, and I certainly
>>don't want to do it by hand!!
>>
>>Mike
>
>You're sort of in luck. With the help of some of the kind folks in
>another povray newsgroup (actually, a LOT of mathemetics help) I have
>some povray 3.1 code to place a line of copyright text on the bottom
>right of your animation frame no matter where the camera is looking.
>
>Simply put, you put your camera location in the vector cam_l and
>look_at in cam_lat. The following will set your camera using those
>variable AND, most importantly, compute the translate and rotate for a
>text object that it will place just a widget in front of the camera
>lense.
>
>
>
>//example
>#declare cam_l = <.6,5.4,16>;     
>#declare cam_lat =  <15,1,24>;
>            
>#local CamZ = 2; //the amount of camera zoom you want
>
>#local CamD = vnormalize(cam_lat,cam_l);
>#local CamR = vnormalize(vcross(y,CamD));
>#local CamU = vnormalize(vcross(CamD,CamR));
>
>text { ttf "timrom.ttf","(c) 1998 by Lewis Sellers
>http://www.intrafoundation.com",.1,0
>    pigment { rgbt<1,.8,.8,.75> }
>    finish { ambient .75 diffuse 1}
>  scale .05
>  translate <-.65,-.48,CamZ>
>  matrix < CamR.x,CamR.y,CamR.z,
>           CamU.x,CamU.y,CamU.z,
>           CamD.x,CamD.y,CamD.z,
>           cam_l.x,cam_l.y,cam_l.z >
>}
>
>camera {
>  location cam_l
>  up CamU
>  right CamR*4/3
>  direction CamD*CamZ
>}        
>

-- 
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/POVring.html
=Bob

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