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Harvest Lot Label Maker for QR Codes and Print-Ready PDF

Turn lot numbers, harvest dates, field IDs, and more into QR labels for boxes and containers, then export a print-ready PDF.

Choose lot-only, JSON, URL, or free-text QR content, with multi-label layouts for A4 and US Letter.

Create in about 30 seconds PDF-first workflow Bulk lot support
Do not put personal information into the QR code. If you are unsure, use lot number only.
Data is processed on this device. Be careful when using browser saving on shared computers.

What You Can Do

Choose from four QR content modes

Build QR codes from a lot number, JSON, a URL, or free text without switching tools.

Preview a single label and the full sheet

Check the label itself and the A4 or Letter placement before printing.

Export true-size print PDF

Generate print-ready A4 and US Letter layouts with repeat copies and automatic page breaks.

Save reusable templates

Keep layout-only presets or full workspaces in the browser or as JSON files.

How to Use (3 Steps)

  1. Enter the lot number and, if needed, the harvest date, field ID, item, and grade.
  2. Choose the QR content mode. If your workflow is not fixed yet, start with lot number only.
  3. Check the preview, create the PDF, and print at 100% scale.

Sample

Print one lot as four labels

Input: lot=2026-0205-F12-A, harvest_date=2026-02-05, field_id=F-12, item=Spinach, grade=A, copies=4

Output: A 70 × 50 mm label is placed automatically on an A4 sheet, and the QR contains only the lot number.

Export multiple lots as one PDF

Input: Upload a three-row CSV with lot, harvest_date, field_id, item, and grade.

Output: Each row becomes a label, and the PDF inserts page breaks automatically.

FAQ

What should I put in the QR code?

Choose lot number only, multiple fields as JSON, a URL, or free text. If your workflow is not fixed yet, lot number only is the safest starting point.

Can I add a barcode too?

The first version focuses on QR codes, but the structure leaves room for future options such as Code128.

Can I save templates?

Yes. You can save layout-only presets or include the current data and keep them in the browser or export them as JSON.

Printed size is off. What should I do?

Turn scaling off and print at 100%. Test-print one sheet first, then confirm the actual size with your printer and paper settings.

What kind of URL format works best?

Use a short base URL such as https://example.com/trace?lot=XXXX and add only the extra parameters you really need. Longer URLs make denser QR codes.

Important Notes

  • Do not put names, phone numbers, addresses, or customer-specific information into the QR code.
  • QR codes can be read by third parties. If you are unsure, choose lot number only.
  • Input values are used only to generate labels. Be careful when saving templates or browser data on shared devices.