free code39 barcode font easy to install on windows and Mac OSX also supports Linux. Create barcodes with this font easy just type string you want to encode and enclose with asterisks. Code39 font is the easist barcode to use. Just enclose the string encoded with asterisks. For example *1234567*. Square brakcets can be used in the place of asterisks which produces code39 barcodes without asterisks appearing in the human readable text: 1234567.Unless font is embedded (possible in Microsoft Word and PDF See KB10006) this font should be available at every computer that views the document for the barcode to show up.Although Code39 is easy to use it is not space efficient. If space is a concern consider Code 128 or a 2D barcode such as PDF417 Data Matrix or QR Code that can encode much more data in small space. KB10620 provides a visual comparison among all popular barcode formats.