Read Unicode text from 2d barcodes using Java

You can easily convert digits, alphanumeric data message into barcodes. If you want to encode Unicode Latin-based characters to barcodes, you need process the Unicode text first, then conver to 2d barcodes.

Here is the most common method to convert Unicode text into barcodes.

• Convert Unicode text string to byte array using UTF-8 encode
• Create 2d barcodes from converted byte array

The following 2d barcode symbologies supports byte array encoding mode:

• Data Matrix
• PDF-417
• QR Code

The Java source code and text below explain how to use Java code to read Unicode text from 2d barcodes, such as QR Code, Data Matrix and PDF-417 symbologies.

• Utilize method BarcodeScanner.ScanInDetails() to get all QR Code data messages from existing image files
• Call method BarcodeDetail.GetDataBytes() to get the barcode data in byte array object
• Use System.Text.Encoding.UTF8.GetString() to convert byte array to Unicode with UTF-8 encode