Barcode Generator Pro
The 8.1 version of Barcode Generator Pro for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This software for Mac OS X was originally produced by Runecats. The application is included in Business Tools. We recommend checking the downloaded files with any free antivirus.
From the developer:
Quickly generate barcodes with the easy to use user interface, preview your barcode before saving. You are then able to copy the barcode to your clipboard or export to PDF, Vector EPS or a high quality TIFF.
Easily change the size of the barcode or the barcode caption, you can choose whether or not you want a caption on your barcode.
You may want to check out more software for Mac, such as MAC Barcode Generator - Corporate Edition, Barcode Generator / Creator or Easy Barcode Creator, which might be similar to Barcode Generator Pro.