Introducing BoldSign’s LinkedIn QR Code Generator
Feb 12 · 3 min read · A LinkedIn QR code lets anyone open your LinkedIn profile or page instantly with a quick scan. With BoldSign’s free LinkedIn QR Code Generator, you can turn any LinkedIn link into a scannable QR code in seconds with no sign-up, no watermark, and no l...
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Understanding QR Code Security Risks in Public Infrastructure
Feb 3 · 5 min read · Municipal services increasingly rely on QR codes to provide fast, frictionless access to information. A recent example is Zarząd Dróg Miejskich (Board of City Roads) placing QR codes on poles and public infrastructure that redirect users to a map sho...
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Confidential - PDF x QR Code Scan (TryHackMe)
Jan 27 · 2 min read · Introduction This challenge focuses on PDF forensics and steganography techniques. The scenario involves a confidential document from alleged "black hat hackers" containing a hidden QR code that's been covered by another image layer. Our objective is...
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How to Generate Barcodes and QR Codes in Python: A Guide to Code 128, EAN-13, and Beyond
Jan 26 · 5 min read · Barcodes and QR codes have become the backbone of modern data exchange and storage. By encoding information into machine-readable graphics, they make physical items become digital data for processing, powering everything from logistics and retail to ...
Join discussionUTM Parameters for Dummies: Your Secret Weapon for Increasing ROI on Marketing Efforts
Jan 23 · 4 min read · Ever wondered which of your marketing efforts are actually working? Whether it's that QR code on your product, your latest Instagram post, or that email newsletter – UTM parameters are your marketing detective tools that solve the mystery! What the H...
Join discussionLe QR Code : Comment un QR Code résiste aux erreurs : de l’information binaire à l’image lisible
Jan 21 · 4 min read · Les QR codes sont partout : paiements, authentification, menus, billets, liens web. Un fait intrigue souvent : un QR code reste lisible même lorsqu’il est partiellement effacé, rayé ou masqué. Ce n’est ni de la magie ni de la chance. C’est le résulta...
Join discussionEating My Own Dog Food
Jan 7 · 1 min read · No idea if my previous entry about Tchecke is going to stay undeleted on hashnode (I’ve tried to restore it multiple times unsuccessfully). Short story is I built an event check-in site a couple months ago. I’ve had a chance to use it a couple of tim...
Join discussionWhy are those square QR codes everywhere?
Nov 15, 2025 · 2 min read · We’re live! Subscribe to keep updated! You've seen them on restaurant tables, event posters, and video ads – those pixelated squares that look like digital puzzles. QR codes are basically shortcuts. Point your phone camera at one, and it takes you di...
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