I have a crystal report that I have to add a Bar Code to. I have downloaded some free and demo TrueType fonts Code 39, Code 128 and UPC from various sources. When I print out the report I can see the bar code but it will not scan with my scanner(the scanner works as I have tested it on multiple other bar codes). Do I need to use something special with Crystal Reports to create a bar code that a scanner can read?
(I have tried printing it on a label printer designed for printing labels so I don’t think it is an issue with the paper/resolution)
Indeed most barcodes have checksums and/or leading & trailing characters.
The most simple one is Code 3 of 9. To use it you need to start and end the code with an *.
Examples:
Some characters require to be escaped as well:
More info on Code 3 of 9.