# Barcode and QR Code Workflow

Create, decode, validate, verify, and print barcodes or QR codes for products, links, WiFi, and labels.

> Canonical page: https://elysiatools.com/en/hubs/barcode-utility

- **Keywords:** barcode generator, QR code workflow, barcode validation

## Frequently asked questions

### When is identifier validation needed?

Use UPC/EAN validation for retail product identifiers; a visible barcode does not prove its number or check digit is correct.

### Why decode after generating?

Decoding confirms the rendered image contains the intended payload and catches wrong URLs, truncation, or layout problems.

### Does a generated code need a scanner test?

Yes when people or equipment will scan it. Test the final artifact because size, contrast, quiet space, and print quality matter.

## Related content

- [PDF Utility Workflow for Assembly, Layout, Redaction, and Protection](https://elysiatools.com/en/hubs/pdf-utility): Prepare existing PDFs for delivery by reviewing typography, assembling pages, applying overlays, checking sensitive content, and adding access protection.