Extending pdfcreator with open source postscript -barcodes for free

For your information I have been using pdfcreator with an open source barcode generator based on postscript. Therefore barcodes for free if your software can use raw postscript commands.

Use the Barcode Writer in Pure Postscript linked to the pdfcreator. 

As per the SAP demo here.

sap-in-japan.blogspot.com/2011/01/sap-barcodes-for-free-in-background-job.html

Best Regards

Robert

For reference, the homepage for Barcode Writer in Pure PostScript is here: http://www.terryburton.co.uk/barcodewriter/


And an online demonstration of its capabilities is here: http://www.terryburton.co.uk/barcodewriter/generator/

I have a barcode maker(http://www.onbarcode.com/asp_net/pdf-417-generator.html) in hand. But it can not create barcode in PDF directly. Can I use this barcode maker to move the created barcode into  PDF? I read the barcode creation tutorial. It seems it does not support. What can I do?