How to access the information related to the QR codes in the pdf version ?

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1

Hi,
Can you please let me know how to access the information(links, …) that are associated with the QR codes in the downloaded pdf version ?
Thank you for your time.
Best Regards,
Nisar

2

I usually use WeChat’s swipe function to access the QR code, and I haven’t considered this issue from a data collection perspective.