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Notes on QR codes that earn their place

Practical guides on using QR codes in Indian businesses — menus, payments, inventory and campaigns.

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Business 4 min read

Most restaurants print a QR menu once and never touch it again. Here is how to set one up so it keeps earning its place after the first month.

Site Admin · 3 Aug 2026

Payments 4 min read

A UPI QR code is a plain text string with five or six fields. Once you can read one, you can spot a tampered code on a counter in seconds.

Site Admin · 3 Aug 2026

Guides 4 min read

PNG is fine on screen and a mistake on packaging. A short guide to picking between PNG, SVG, PDF and EPS without a conversation with your printer.

Site Admin · 3 Aug 2026