What’s the difference between the free version and the paid version?
What are the limitations of the free version?
Please note, when you do not use a valid license and do not set in code, Aspose.BarCode API would be used in evaluation mode (which is also called free version). Once you use a valid license and set it code at the start of your program, it will become paid version or professional version.
There are certain limitations using Aspose.BarCode in (free) evaluation mode. Surely, without using a license, Aspose.BarCode can be used to generate barcode labels but with certain limitations. For example, an evaluation watermark will always be placed on the resulting barcode image. Moreover, the unlicensed version of the library allows reading all types of barcodes; however, only the Code39 symbology can be used without limitations; for all other barcode types, 30% of the decrypted text will be masked with " * “. All other actions with barcodes through Aspose.BarCode require setting the valid license first. The license activates access to the entire functionality of the library so that you can perform barcode generation and recognition without any limitations and watermarks.
See the document on Licensing for your complete reference.