Frequently Asked Questions
- What resolution should a barcode PNG be for printing?
- For printing on product labels, use a minimum of 203 DPI — the standard resolution for thermal label printers. For offset or laser print on paper labels, 300 DPI is recommended. Bulk Barcode Generator exports barcode PNGs at 300 DPI by default, which is suitable for both office printing and commercial label printing.
- Can I use a barcode PNG in Word, Excel, or Google Docs?
- Yes. PNG is the most compatible image format for office applications. Insert the barcode PNG using Insert > Picture in Word or Excel. For Google Docs and Sheets, use Insert > Image. The barcode will retain its quality as long as you do not scale it down below the minimum print size (roughly 1 inch wide for Code 128).
- Does the PNG barcode have a transparent background?
- By default, barcode PNGs have a white background, which is recommended for printing (transparent barcodes can cause scanning problems if placed on coloured backgrounds). If you need a transparent PNG for design overlay work, choose the transparent background option in the export settings.
- Can I batch download multiple barcode PNGs at once?
- Yes. Upload a CSV or Excel file with your barcode values, choose PNG export, and download a ZIP file containing one PNG per barcode value. The file is named after the barcode value for easy identification. There is no row limit — generate 10 or 10,000 PNG barcodes in one batch.
- Is PNG or SVG better for barcode images?
- SVG is technically superior for scalability — an SVG barcode can be enlarged to any size without quality loss. However, PNG is more universally compatible: most e-commerce platforms, office apps, and label design software accept PNG but not SVG. Use PNG for general use and SVG when you need scalable vector output for professional design software.