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603 Printingby Open Project

Artwork Guide

Get your file
print-ready.

Screen printing is a physical process. The quality of your print starts with the quality of your file. Here's exactly what we need, and what to avoid, so your order comes out perfect the first time.

Don't have print-ready artwork?

Our in-house design team handles everything from a quick file fix to full brand identity work. Starting at $45. See design services →

Accepted File Formats

Vector files are always preferred. They scale without any loss of quality. Raster files (PNG, PSD) work when they're high enough resolution, but vectors give us the cleanest separation for each color on press.

Best
AIAdobe Illustrator

Vector. Fully editable, industry standard.

PDFPDF (press-quality)

Vector. Universal and reliable. Save with bleeds off.

Good
PNGPNG (high-res)

Raster. 300 DPI min at print size. Transparent bg preferred.

PSDPhotoshop PSD

Raster. Include all layers. 300 DPI at print size.

Resolution Requirements

300 DPI

Minimum

At your final print size, not at thumbnail size.

600 DPI

Preferred

Needed for fine line work, small text, or detailed illustrations.

The most common mistake: measuring DPI at the wrong size

A file can say "300 DPI" in Photoshop but only be 2 inches wide. If your front print needs to be 12 inches wide, that same file would effectively print at 50 DPI, blurry and unusable. Check: is your file 300 DPI at the actual print dimensions?

Color Setup

Screen printing uses spot colors — each ink color is a separate physical screen burned and printed in sequence. This is different from inkjet or laser printing.

Each color = one screen = one cost

A 3-color design uses 3 screens. Count every ink color in your design, including black and white if they're printed. The shirt color itself doesn't count.

RGB is fine. We handle the conversion

Design in whatever color mode you like. We separate and convert to spot colors during prepress. Have specific Pantone references? Drop them in your order notes.

Maximum Print Size by Location

Your design can be any size within these limits. We confirm exact placement on your proof.

LocationMax SizeType
Front Center13" × 17"Full chest print
Back Center13" × 17"Full back print
Left Chest4" × 4"Logo placement
Right Chest4" × 4"Logo placement
Left Sleeve4" × 13"Band or vertical
Right Sleeve4" × 13"Band or vertical
Hem Tag3" × 2"Bottom hem signature

What Works vs What Doesn't

Works great

Clean vector logo, 1–4 spot colors

Prints sharp at any size. No resolution issues.

Bold type with outlined fonts

Renders exactly as designed. No font-missing surprises.

High-contrast graphic, flat fill areas

Ideal for screen printing. Separates cleanly.

High-res PNG at full print size, transparent background

300 DPI at the actual dimensions you need printed.

Halftone gradient (flagged in notes)

We convert fades to halftones. Just let us know it's in there.

Causes problems

Screenshot or photo of a design

72 DPI screen resolution. Looks fine on screen, prints blurry.

Logo downloaded from a website

Almost always low-res. Usually a JPEG with a white box baked in.

JPEG with white background

White box prints as a white box on the shirt — not invisible.

Full-color photo or thousands of colors

Screen printing isn't inkjet. Photos need conversion and discussion.

Word doc, PowerPoint, or Canva export

Not print formats. Export as a press-quality PDF first.

Ready to submit?

Upload your file in the configurator and our team reviews it before anything touches the press. Questions first? Just email us.