Windows developers can use the Softek Barcode Toolkit for Windows PDF Extension.
Linux developers can use Ghostscript to convert the PDF document to TIF before calling the Softek Barcode Toolkit to read the barcode:
gs -r300 -dNOPAUSE -q -sPAPERSIZE=a4 -sDEVICE=tiffg3 -sOutputFile=file.tif -- file.pdf
bardecode -t any -f file.tif
