covidpass icon indicating copy to clipboard operation
covidpass copied to clipboard

Published 20 hours ago • verified publisher icon covidpass-org

QR code detection in PDFs sometimes fails

Open fhibler opened this issue 3 years ago • 1 comments

Hi,

the PDF upload of the EU COVID certificate (export from CWA) is only working if I rotate the PDF, so that the QR code is on the top right corner. It did not work with the default layout.

Error message being shown: Could not find QR Code in provided file.

iPhone X iOS: 15.2 Latest Safari w/ default settings CWA: 2.15.1 (2)

fhibler avatar Jan 06 '22 08:01 fhibler

I think the QR code is upside down there. In general, the QR code detection in PDFs seems to be kind of inconsistent. We already tried to optimize this but seem to have reached the limitations of the library we are using. Haven't found something better since.

marvinsxtr avatar Jan 10 '22 21:01 marvinsxtr