hi self
i'm just posting the REV 0100-13Gen2006
ABOUT REV 0100 - 13 January 2006

This is a pre-release of the PDF generating code. There will be a couple
other quick releases to follow in the coming days, and this shouldn't be
considered a "stable" release since it's not been tested heavily, but we
wanted to post it for the people who'd like to try it out.

To use it the pdf library, select Sketch -> Import Library -> pdf.
And then choose one of the following methods:

+ to render everything out to a file:

 void setup() {
   size(400, 400, PDF, "filename.pdf");
 }

 void draw() {
   // draw something good here
 }

 void mousePressed() {
   exit();  // important!
 }

 this will create a sketch that draws only to a file. successive frames
 will be drawn on top of one another. when you're finished, call exit(),
 for instance, inside mousePressed() or a keyPressed() event.
 this will still open a window of size 400x400 but not draw into it.
 future releases won't open the window, since it doesn't work properly
 with sizes larger than the screen size (as might often be the case when
 rendering to a file).

+ if you want to record just a single frame, use beginRecord() and
 endRecord() inside draw:

 void draw() {
   beginRecord(PDF, "frame-####.pdf");
   // your awesome drawing happens here.
   endRecord();  // saves the file
 }

 this can also be triggered by a mouse press. the #### will cause a
 four digit "frame" number to be inserted into the filename.

+ if you want to record the entire thing to a file at the same time as
 drawing to the screen (i.e. save out an interactive drawing), do this:

 void setup() {
   size(400, 400);
   // etc
   beginRecord(PDF, "everything.pdf");
 }

 void draw() {
   // do your worst
 }

 // this needn't be mousePressed, but you need to call this somewhere
 // when you're done, to ensure that the pdf file properly closes.
 void mousePressed() {
   endRecord();
 }

Caveats with PDF rendering:

+ anything bitmapped works very poorly. so it's no good for images.

+ use createFont() with a truetype font (some opentype also work) to
 make fonts work properly. any font that shows up in PFont.list()
 should work. if you don't use createFont(), they'll likely show up
 bitmappy and gross like images. the shape of the characters may be
 weird in some cases, there seems to be a java bug with cubic vs.
 quadric splines. looking into a workaround if necessary.

+ rendering from 3D isn't yet supported, but coming soon.

+ exit() is really important when using PDF with size()

this 4 .pdf export

thank you both. I'll try it out.