Seeking suggestions for QR barcodes

We need to stamp unique 2D barcodes on each page. We are creating many 500 page files. Curious from anyone who has had experience here whether to embed a font for this, or to add 1-plane bitmaps to pages. Perhaps someone has figured out how to use vector drawing? Want to try to keep file sizes small as possible.

We do this already for PCL printer output, and have found having a font pre downloaded to the printer works well in that scenario.
Lee Gillie, CCP
Online Data Processing, Inc.