The issue with 15.1 is only resolved for new models of devices. It has been fixed with my 2020 iPad Pro, but hasn't been fixed with iPhone 8. Scans with iPhone 8 are still unusable compared to scans taken like half year ago. Resolution is here but image is blurry, like this part has been changed on purpose for older devices. Made many test scans with both iPad and iPhone, compared with many scans done with iPhone half year ago (this is my work tool so have planety of those). To dig further into detail, the flaw is not in "generating/saving pdf" anymore, but already visible directly on iPhone screen after taking a scan, before saving. Like the focus algorithm has been changed and not whole document is in focus now. No matter what I try the text and signs that are usually at the bottom of the documents on both sides are always blurry. Double checked normal photo taking to make sure it's not physical flaw on the lens. I am really dissapointed. I don't like the idea this is product ageing on purpose here. Any ideas?