cfdocument - using cf7 - displaying .bmp & .tiff files

I'm using CF7's cfdocument tag (with no hope of upgrading to CF8 anytime soon). I'm generating PDFs and not able to display .bmp or .tiff files in the PDF. This was a known issue in this version.

-Has there been a fix, hotfix, or scheduled fix?
-Is there a workaround?

Thanks -