Convert Mercari shipping labels to 4×6
Mercari sends the prepaid label as a PDF attachment or a download link, laid out for an office printer. Drop it here to get a 4×6 version that fills your thermal label instead of sitting in the corner of a letter page.
Drop your Mercari label PDF here
Multiple files and multi-page PDFs are fine. You get one 4 × 6 in page per label.
Runs entirely in your browser. Your file is never uploaded.
How to print Mercari labels on 4×6
- 1In the Mercari app, open the sold item and tap Print shipping label, or open the label email and save the attachment.
- 2On a phone, save the PDF to Files first; on a computer, download it to your desktop.
- 3Drop the PDF here and check the preview.
- 4Download the 4×6 PDF and print at Actual size. The file is named after the tracking number so you can match it to the sale.
About Mercari's label PDF
Mercari offers both USPS and FedEx/UPS prepaid labels depending on the size of the item. The converter reads the tracking number either way and names the file after it, which makes matching a printed label to a sale much easier when you ship several items in one session.
Printer settings for Mercari labels
Every guide below covers the 4 × 6 paper size, Mac, Windows, iPhone and Android settings, and what to do when a label prints tiny or across two labels.
- Rollo 4×6 settingsRollo X1038, Rollo Wireless, Rollo USB
- Munbyn 4×6 settingsMunbyn ITPP941, ITPP129, RW401, 941B
- Zebra 4×6 settingsZebra ZD410, ZD420, ZD421, GK420d, GX420d, ZP450
- DYMO 4XL 4×6 settingsDYMO LabelWriter 4XL, 5XL
- Phomemo 4×6 settingsPhomemo PM-241, PM-246, M110, M120
- POLONO 4×6 settingsPOLONO PL60, PL420, P31S
Private by design
The converter is JavaScript running on this page. Your PDF is read from your own device, cropped in memory and saved back to your device. There is no server to upload to, no account to create and no copy of your buyer's address anywhere but your own machine.
Mercari label questions
Can I print a Mercari label straight from my phone?
Yes. Save the label to Files, open this page in Safari or Chrome, convert it, then use Print or Share to send it to AirPrint or your printer's app.
My Mercari label prints across two labels. How do I fix that?
The roll is being fed as one long page. Set the paper size to 4 × 6 in in the driver, then calibrate the printer so it learns the gap between labels.
Does it work with Mercari's FedEx and UPS labels?
Yes. The carrier is detected from the tracking number pattern and shown in the batch summary, so you can sort USPS drop-offs from FedEx ones.
Mercari's label is a PNG, not a PDF. What now?
Convert the image to a PDF first: on iPhone, open it in Files and use Create PDF; on a computer, print the image to PDF. Then drop that PDF here.
Is my buyer's address stored anywhere?
No. Everything runs in this page's JavaScript. There is no upload, no account and no log of the labels you convert.
Selling on more than one app?
- VintedLabels to 4×6
- PoshmarkLabels to 4×6
- eBayLabels to 4×6
- DepopLabels to 4×6
- EtsyLabels to 4×6
- Pirate ShipLabels to 4×6
- Amazon returnsLabels to 4×6
- UPSLabels to 4×6
- FedExLabels to 4×6
Or use the general 4×6 label converter for anything else.