QR Codes on Product Labels That Scan Small and Never Expire

The reliable floor for close-range scanning is about 2 x 2 cm (0.8 x 0.8 in). The general rule: the code's width should be roughly one tenth of the distance it will be scanned from — fine for a label held in the hand, but size up if it will be read on a shelf or across a counter. Two things buy headroom at small sizes: keep the encoded data short (uqr.ai dynamic codes encode a short redirect link, not your full destination URL, so the module grid stays coarse and scannable) and protect the quiet zone — roughly four modules of clear, ink-free margin on all sides. A large-enough code with artwork crowding its edges will still fail.

Yes. uqr.ai never expires or deactivates printed QR codes — on any plan, including the free one. That is the core promise of the product for print work: once ink is on the label, the code keeps resolving. And because every code is dynamic, 'still works' means more than 'still redirects' — in three years you can point that same printed code at a new ingredient PDF, a replacement video, or a completely different page. The expensive asset is the printed label; the destination behind it stays cheap to change forever.

Send SVG whenever your printer or label designer accepts vector files — it scales to any print size with perfectly sharp modules, from a thumbnail-sized back-panel code to large-format packaging. If the workflow needs raster, use the PNG export and place it at 300 DPI or higher at the final printed size. The one mistake to avoid: dropping a small PNG into the artwork and scaling it up. Upscaled raster edges go soft, soft module edges misread, and the failure only shows up after the run is printed. When in doubt, export larger than you need or use the SVG.

Work down this checklist. (1) Size — below about 2 x 2 cm, or too small for the real scan distance. (2) Contrast — light-on-dark, low-contrast brand colors, or a busy, textured background behind the modules. (3) Quiet zone — artwork, borders, or text crowding the code; it needs roughly four modules of clear margin on every side. (4) Print quality — an upscaled PNG or heavy ink blurring module edges. (5) Surface — a code wrapped around a tight curve distorts. This is why the proof step matters: test-scan a printed sample on the actual label stock, with multiple phones and in poor light, before committing to the full run.

Yes, with care. The label is flat when printed but curves once applied, and the code curves with it — enough distortion and phones stop reading it. Keep the code small relative to the container: the wider the code, the more of the curve it wraps around, so a compact code near the 2 x 2 cm floor on a large-diameter jar is a far easier scan than a big code hugging a slim bottle. Place it where the label sits flattest, keep the quiet zone generous, and always test-scan on the applied, filled container rather than the flat sheet — a proof that only ever lay flat has told you nothing about the product on the shelf.