Just wondered if there might be any QR code experts around.
Have a document with a QR code on it. All my QR scanner apps happily decode it, and tell me it's "Data Matrix" and type "TEXT".
So far, so expected.
However, when I try to *generate* the sodding thing, with any number of free online apps, giving them the data extracted seems to generate a completely different QR code ?????
Well, not completely different, but certainly not identical.
The original QR code seems to be 40x40, and looks like it's somehow 4- quartered.
The closest I have got was this site
which allows tweaking of a lot of parameters. But even then, selecting TEXT, 40x40 the resulting QR code doesn't look the same.
HOWEVER - it still scans and delivers the exact data extracted from the original QR code.
Can anyone explain this, and (more importantly) is this a difference which makes no difference ?
Does anyone know of a facility to read in and reproduce QR codes for inclusion in documents etc ?
Thanks guys.