Code39, also known as 3 of 9 code, USD-3 and LOGMARS, is a widely used bar code symbology defined in ISO/IEC 16388:2007 standard. LOGMARS stands for Logistics Applications of Automated Marking and Reading Symbols. It is a variation of code 39 as defined in Military Standard MIL-STD-1189B. Code 39 only accepts 43 valid input characters: 26 uppercase alphas (A - Z), 10 digits (0 - 9), hyphen(-), period(.), space, dollar sign($), slash(/), plus(+) and percent (%). Other input characters will be omitted by the Code39 system. Code39 is a self-checking barcode symbology that usually does not require a checksum digit. But in applications that require high accuracy, a modulo 43 checksum character is appended after the data. If you download Barcodesoft code39 demo, you will find source code in VBA and C language of Code39 checksum calculation. With Barcodesoft Code39 Font, it is quite simple to encode code 39 bar codes. Just put asterisks (*) before and after your data, then apply one of the following code39 fonts. Code39 bar code will appear. There are fourteen code39 barcode fonts contained in the package as listed below, marked by different trailing indicators. Barcodesoft Code39 barcode fonts have 7 different aspect ratios. Those code39 barcode fonts with "Hr" in their names have human readable text printed underneath code 39 barcode. Barcodesoft Code 39 Premium Package empowers you to print Code39 barcodes from desktop printers. There is also a crystal reports UFL DLL and a GUI encoder included in the package. There is also a sample in the package. You will find how easy it is to integrate bar coded Code39 data with your own application. Barcodesoft Code39 Premium Packages include a 30-day money back guarantee. If you are dissatisfied with the product for any reason, you will receive a full refund within 30 days.