Designing patterns for fabric & print-on-demand

Get sizing, resolution and colour right so your prints come out crisp.

Turning a digital pattern into a printed product — fabric by the metre, a tote bag, wrapping paper, leggings — is one of the most satisfying uses of a seamless pattern. But a design that looks perfect on screen can print blurry, pixelated or oddly scaled if the file isn't prepared properly. This guide covers the practical decisions that make the difference.

Why a seamless repeat is essential

Printers and print-on-demand platforms take your single tile and repeat it across the whole product. If the tile has a visible seam, that seam repeats too — a hard line running across every garment or roll of fabric. Because PatternMaker wraps every element that crosses an edge, the tiles you export already lock together perfectly. That's the foundation everything else builds on.

Resolution: the number that decides sharpness

Print quality is measured in DPI (dots per inch). Most fabric printers and print-on-demand services want artwork at 150 DPI for large fabric formats and 300 DPI for smaller, detail-heavy items. The bigger the pixel dimensions of your export, the larger it can print before it looks soft.

PatternMaker exports PNGs at 1000, 2000, 4000 or 8000 pixels. As a rough guide for a single tile:

1000 px — fine for small motifs and web use, or a tile that will repeat many times across a product.
2000 px — a solid default for most print-on-demand items.
4000 px — for larger prints, cushions, and when the tile repeats only a few times.
8000 px — for big, close-viewed formats where you want maximum crispness.

Rule of thumb: it's always safe to export larger than you think you need. Downscaling a big file keeps it sharp; enlarging a small file makes it blurry.

Choosing your file format

For fabric and print-on-demand, a high-resolution PNG is the safest, most widely accepted choice — every platform accepts it and it preserves your colours exactly. Export the SVG as well if your printer accepts vector files or if you want to keep a master copy you can rescale infinitely without any quality loss. If you're weighing the two, see SVG vs PNG.

Think about print scale before you design

Scale is where most first-time designs go wrong. The tile you export is one "repeat unit", and how large that unit prints depends on the product and the service's settings. A motif that looks bold on your screen can print tiny on a dress or enormous on a phone case.

Decide the mood first. Small, dense motifs read as a classic "ditsy" print; large, sparse motifs read as bold and modern. Design the tile with the final product in mind.
Keep important motifs away from thin overlaps. Very fine lines can drop out or look fragile when printed small.
Use the mockups. PatternMaker's product mockups (t-shirt, tote, pillow, mug) give you a quick feel for scale before you order a sample.

Colour: screen vs print

Screens emit light (RGB) and printers lay down ink, so colours can shift slightly in print — bright, saturated tones especially. A few habits reduce surprises:

Avoid relying on ultra-bright neons that no ink can reproduce faithfully.
Keep enough contrast between motif and background so the design survives a slight colour shift.
Order a sample before a big run. Every printer reproduces colour a little differently, and a physical swatch is the only true test.

A quick pre-export checklist

The 3×3 preview shows no seams and even density.
No unintended blank corners or crowded clumps.
Motif scale suits the product you have in mind.
Exported at a generous resolution (2000 px or higher for print).
Saved both a PNG and, if useful, the SVG master.
Checked the platform's own artwork guidelines for size and format.

Get those right and your pattern will print exactly as you designed it — crisp, seamless and repeatable across any product.

Design a print-ready pattern →