issue in pdf417 scanning ios swift

I believe the encoding you're seeing in the string is a bungled PDF417 encoding. It is omitting some characters, making it impossible to recover your original hex code from that string. After finding a scanner that properly handles the barcode, it turns out the barcode does not match your hex code. It turns out, the raw data does exist in your AVMetadataMachineReadableCodeObject, but it's not available through a public getter. In order to properly interpret the barcode, you'll need a reader that does not interpret the hex code as encoded strings, but as a byte stream. At the very least, you need a reader that will still preserve the 00 - 1F and 80 - 9F ranges. One such reader that I've found is NeoReader. It is entirely possible you've already tried it, but copy-pasting can cause errors with these special code ranges. *For clarity, what you refer to as the encrypted string(attachment), I will refer to as the hex code, to further differentiate from the random-looking string at the end of your post. Hence it will be great if I can get the source code to debug and solve the problem as well. By the way, do you have driver's license enabled in order to capture/read PDF417 data. Works great with a number of different state drivers' licenses. However, I have been able to get it to read any license from the state of Maryland/China. And I can successfully scan PDF417 codes after that.

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