To print barcodes, get a high-resolution barcode image (vector EPS or SVG is best), place it on your label at the correct size, print at 300 DPI or higher, and test-scan before mass printing. Always leave a quiet zone (white space) around the bars so scanners can read them.
Start With the Right Image, Not Just the Number
A common mistake is trying to print a barcode from the number alone. You need the actual barcode graphic. Vector formats — EPS, SVG, and PDF — scale to any size without becoming blurry, which makes them ideal for printing. High-resolution PNG works for a fixed size but can pixelate if enlarged.
You can get print-ready files in every format from our barcode image service, so you are not stuck trying to generate them yourself.
Choose a Label Size and Software
Pick a label size that fits your packaging comfortably, leaving room around the barcode. Then use label software, or even a tool like Word or Canva for simple jobs, to place the barcode on the label template. The key is to keep the barcode’s proportions intact — stretching it horizontally or vertically can make it unscannable.
Mind the Quiet Zone and Print Resolution
Every barcode needs a quiet zone: a clear margin on both sides with no text or graphics, so the scanner can detect where the code begins and ends. Crowding the bars is one of the top reasons barcodes fail to scan.
Print at 300 DPI or higher for crisp, sharp bars. Use pure black bars on a white background — colored bars or low-contrast or glossy backgrounds can defeat scanners. The cleaner the contrast, the more reliable the scan.
Test Before You Print in Bulk
Never run a thousand labels without testing first. Print a single label and scan it with a phone barcode app or a handheld scanner. Confirm that it reads and returns the correct number. Only once it scans cleanly should you run the full batch.
It is also smart to verify the underlying number is valid before printing anything, using our barcode validator.
Printing on Different Materials
Paper labels are easiest, but if you print on glossy, curved, or dark packaging, take extra care: increase contrast, avoid placing the code on a tight curve, and test thoroughly. For very small packaging, make sure the barcode is not scaled below the minimum size at which it still scans reliably.
Frequently Asked Questions
What DPI should I print barcodes at?
300 DPI is the practical minimum for reliable scanning. Higher is fine; lower risks fuzzy bars that scanners struggle to read.
Can I print barcodes in color?
Use black bars on a white background. Colored bars or low-contrast backgrounds often fail to scan. Color elsewhere on the label is fine.
What size should a barcode be?
Standard retail barcodes scan well around their nominal size. Shrinking them too far makes the bars too fine to read, so test any reduced size before printing.
Need Barcodes for Your Products?
GoodUPC provides authentic, unique UPC and EAN barcodes with instant digital delivery — no annual fees. Accepted on Amazon, eBay, Etsy, Walmart, and Shopify.