Creates Intelligent Mail barcodes for USPS bulk mail and reply mail. Plus, prints IMB tray/sack tags and IMB pallet placards for bulk mailing. Creates barcodes one at a time, or adds barcodes to an entire file at once. USPS certified to meet "unique serial numbers" requirement, per piece or per mailing. Works with most mailing list software plus Excel, .csv, etc. Easy to use, includes complete help file. Free barcode printer font with purchase. Purchase includes free updates for a full year.