![]() The legal validity of the paper document derives from the presence of a special secure QRCode inserted in the PDF signature area. Lambda Service allows you to create digitally signed PDF documents, which maintain their legal validity even in paper format (print). Keep in mind that scanning and processing QR codes can take a few seconds.What is it and why use Lambda Service. Your device will either scan the code automatically once your camera's focused or you will have to press a button in your QR code reader application. Make sure your shadow is not covering the QR code.Scan QR codes in bright lighting conditions.Place the QR code on a plain background without patterns.Make sure the QR code is clearly visible on your device's screen.Slowly move your smartphone towards the QR code.Hold your smartphone about a foot away from the QR code when scanning.Here are some tips on how you should scan QR codes with your smartphone: Free apps can be downloaded from the Google Play Store. If your smartphone doesn't have a built-in QR code reader (Android 7 / iOS11 and lower), download a QR code reader app. I can't scan a QR code with my smartphone. IPhone or iPad users can also use Google Lens via the Google Photos app. A QR code link should then appear on your screen. Point your camera at a QR code and it will automatically scan the QR code (no need to press any buttons). You don't have to download a QR code reader app. The 2017 iOS 11 update allowed iPhone users to scan QR codes using their smartphones' Camera app. Smartphones running Android 7 or lower need a separate QR code reader app to scan QR codes. Tap on the push notification which will pop up on your screen to access the information stored in the QR code.Click on ‘What's on my screen?' when it appears on the screen.Point your smartphone's camera at a QR code.To scan a QR code using Google Screen Search: To do this, open the Google app → Navigation → Settings → Enable Screen Search. ![]() To use Google Screen Search, you must activate Screen Search. However, if you want to use Google Lens, you must download the Google Lens app. Your smartphone doesn't need a separate QR code reader app. You can use Google Screen Search to scan QR codes. Visit Google's support website for more information about Google Lens. It uses image recognition technology to identify real-life objects (e.g. Google Lens offers more features than scanning QR codes. The Google Lens icon will only appear if it has found information about the scanned object. Via Google Assistant: Say "OK Google" → Press on Google Lens icon.Open the Camera app settings and activate Google Lens to scan QR codes. You don't need to download a QR code reader app. Your smartphone has a built-in QR code reader in the Camera app. Scanning QR codes is different depending on your version of Android OS: Use the overview below to find out which Android and iOS versions have built-in QR code reader apps, and which need a separate app. ![]()
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