Question 1

What's the difference between barcode types?

Accepted Answer

Code 128: most common for small items, high density. EAN-13: European products, 13 digits. UPC-A: US products, 12 digits. Code 39: industrial use. Choose based on your market or partner requirements.

Question 2

How do I get a barcode number for my product?

Accepted Answer

GS1 member companies get GTIN (Global Trade Item Number). For individuals: some marketplaces (Amazon, Noon) accept custom barcodes. Or buy a GS1 barcode from your local office.

Question 3

Will the generated barcode work on real products?

Accepted Answer

Yes, if the number is registered in GS1 system. The barcode is just a visual representation — the scanner reads the number. If the number isn't registered, store scanners may not recognize it.

Question 4

Does barcode support letters or just numbers?

Accepted Answer

Depends on type. Code 128: letters, numbers, symbols. Code 39: numbers + uppercase letters. EAN/UPC: numbers only. Codabar: numbers + letters A-D.

Question 5

What's the minimum barcode size for printing?

Accepted Answer

20×20mm for standard barcodes. Print at 300 DPI minimum. Test scanning from 10-30cm distance. High contrast (black on white background) is essential.

Question 6

What's the difference between barcode and QR Code?

Accepted Answer

Barcode: 1D (linear), stores 20-30 characters, read by laser scanner, common in retail stores. QR Code: 2D (matrix), stores up to 4,296 characters, read by camera, broader applications.

Question 7

Can I print barcodes with a regular printer?

Accepted Answer

Yes, print as a normal image. Laser printers give the best quality. Thermal printers are best for mass production. Self-adhesive A4 labels are available at stationery stores.

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