Why Is My Packing Slip Printing Too Small on a 4×6 Thermal Printer?
A tiny packing slip on a 4×6 label almost always means a full-page document is being shrunk to fit. The fix is either the right print settings — or a packing slip that is 4×6 to begin with.
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Print at Actual Size / 100% on 4×6 stock — not “Fit to page.” Long orders continue onto extra 4×6 pages instead of shrinking text below 7 pt.
Why packing slips print too small on a thermal printer
Most marketplaces and shipping tools generate packing slips for a full page (8.5 × 11 in or A4). A 4×6 label is roughly a quarter of that area. To make a full page fit, the print dialog or driver scales it down — around 45–55% — and text that was 10 pt becomes 5 pt. Sellers on marketplace forums describe exactly this: scaling a standard packing slip down to fit a 4×6 label leaves the print small.
| What you see | Likely cause | Fix |
|---|---|---|
| Whole slip is tiny, wide blank margins | Full-page (Letter/A4) document scaled to fit 4×6 | Use a native 4×6 slip (below), or print at 100% on a Letter-size page |
| Slip is normal size but cut off | Driver paper size is 4×6 but the document is Letter, printed at 100% | Use “fit” only if you accept small text; otherwise use a 4×6 slip |
| Slip prints small in the browser but fine from another app | Browser “Fit to page” or Scale is not 100% | Set Scale to 100% / Actual size |
| Everything (labels too) prints small | Queue default is Letter/A4 instead of 4×6 | Set the printer’s default paper size to 4×6 in (100×150 mm) |
Step-by-step: fix the print size
- Set the paper size to 4×6 in (100×150 mm) in the print dialog, and make it the printer’s default in the driver or system printer settings so it sticks.
- Set Scale to Actual Size / 100%. Turn off “Fit to page,” “Shrink to fit” and “Scale to printable area.”
- Set margins to None (or Minimum) and turn off headers and footers in browser print dialogs.
- Check where the slip comes from. If it is a full-page PDF, 100% on a 4×6 label will crop it and “fit” will shrink it — neither is readable. The reliable fix is a slip designed for 4×6.
- Print one test slip on a spare label before running a batch.
Menu names vary by app, operating system and driver. If a setting isn’t where you expect it, see the full guide to printing a packing slip on a thermal printer.
The lasting fix: a packing slip that is already 4×6
Rather than shrinking a full-page slip every time, make the slip 4×6 from the start. The maker below lays out the order for a 4×6 page — order number, customer, items with SKU and variant, an optional gift note — and keeps item text at 7 pt or larger, moving long orders onto extra 4×6 pages instead of shrinking them.
- Using ShipStation? It has a built-in 4×6 packing slip format — see the ShipStation 4×6 guide.
- Using Shopify? The default template is full-page HTML/Liquid; see Shopify options.
- Using Etsy or eBay? See the Etsy and eBay workflows.
- Prefer pen and paper? Print the blank 4×6 template.
Sources and official help
These are the vendors’ own help pages behind the steps above. Community threads are sellers’ own accounts, not vendor guarantees.
- Etsy Community: printing packing slips on a 4×6 thermal printer
- Shopify Community: customizing the packing slip template for 4×6
- ShipStation Help: print packing slips
- Rollo Support: set a default 4×6 size on Mac
Found something out of date? Tell us and we’ll correct it.
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Frequently asked questions
Why is my packing slip printing so small on a 4×6 label?
The slip is most likely a full-page (Letter or A4) document being scaled down to fit a 4×6 label, which shrinks the text by roughly half. Use a packing slip that is natively 4×6, or set the paper size to 4×6 in and print at Actual Size / 100%.
How do I stop my thermal printer shrinking the packing slip?
Turn off “Fit to page” and “Shrink to fit,” set Scale to 100% / Actual size, set the paper size to 4×6 in (100×150 mm) and margins to none. If the document itself is full-page, it will then be cropped instead, so a native 4×6 slip is the better fix.
Can I make the text bigger on a packing slip printed at 4×6?
Yes, if the slip is designed for 4×6. The maker lays out the order for a 4×6 page and keeps item text at 7 pt or larger, using two columns or extra pages for long orders rather than shrinking the text.
Why does only my packing slip print small, not my shipping labels?
Shipping labels are usually generated at 4×6, while packing slips are typically full-page documents. The printer scales the full-page slip down to fit, so only the slip looks small.
Should I print the packing slip on the same 4×6 printer as the label?
Many sellers do, because it avoids swapping paper and a second printer. It works well when the slip is designed for 4×6. If you prefer full-page slips, print them on a regular printer instead.
More for sellers who print on 4×6
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