if I open a pdf file by clicking on the file name, the qrcode inside the file is not displayed. If, on the other hand, I open it in the browser, the qrcode is perfectly visible.
According to my test, I cannot reproduce your issue.
By clicking the file name or opening it in a browser, the QR code in the pdf file will be displayed correctly:
Please help confirm if all pdf files containing QR code occur the same issue.
In addition, please use the sample file to compare the result.
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