Choose from four QR content modes
Build QR codes from lot only, JSON, URL, or free text without changing tools.
Harvest Lot Label Maker (QR and Print PDF)
Turn lot numbers, harvest dates, field IDs, and more into QR labels for boxes and containers, then export them as print-ready PDF.
Choose QR content from lot only, JSON, URL, or free text, with multi-label layouts for A4 and US Letter.
Create in about 30 seconds
PDF-first workflow
Bulk lot support
What You Can Do
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 layouts for A4 and US Letter with repeat copies and page breaks.
Save reusable templates
Keep layout-only presets or full workspaces in the browser or as JSON files.
How to Use (3 Steps)
- Enter the lot number and, if needed, the harvest date, field ID, item, and grade.
- Choose the QR content mode. If your workflow is not fixed yet, start with lot number only.
- 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 x 50 mm label is placed automatically on an A4 sheet, and the QR contains the lot number only.
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 handles page breaks automatically.
FAQ
What should I put in the QR code?
You can choose lot number only, multiple fields as JSON, a URL, or free text. If your operation 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%. Always test-print one sheet first and 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 for label generation. Be careful with template saving and browser saving on shared devices.