How to Prepare Artwork for DTF Printing: File Types, DPI & Transparency
The quality of a DTF transfer starts long before it hits the press - it starts with your file. Supply clean, print-ready artwork and you'll get sharp lines, vibrant colour and clean edges. Here's exactly how to set your files up.
File requirements at a glance
| Setting | Recommended | Why |
|---|---|---|
| File type | PNG (transparent) | Keeps a clean, background-free edge |
| Resolution | 300 DPI | Sharp detail with no pixelation |
| Colour mode | RGB | DTF printers use RGB-based profiles |
| Background | Transparent | Only your design prints - no box around it |
| Size | Actual print size | Avoids scaling up and losing quality |
Use a transparent background
This is the most common mistake. If your design has a white or coloured background, that background will print as a solid block around your artwork. Save as a PNG with a transparent background so only the design itself transfers.
Resolution: aim for 300 DPI at print size
Set your artwork to 300 DPI at the exact size you want it printed. A small logo blown up to a full-front print will look soft and pixelated. If you only have a small file, recreate it larger rather than scaling it up.
Fine lines and small text
DTF handles detail well, but very thin lines (under about 1mm) and tiny text can struggle to hold. Bump up hairline strokes and keep text legible at the final size for a clean result.
Colour: what you see vs what prints
Screens are backlit, garments are not, so prints can look slightly less bright than your monitor. Very light pastels and near-white elements can also be hard to see on light garments. If colour accuracy is critical, ask about a printed sample before a big run.
Quick pre-flight checklist
- Saved as a transparent PNG
- 300 DPI at the final print size
- No stray background or leftover pixels
- Fine lines thickened; small text still legible
- Design centred and cropped tight to the artwork
FAQ
Can I send a JPEG? JPEGs can't hold transparency, so they'll print with a background. Convert to a transparent PNG first.
What DPI is best for DTF? 300 DPI at actual print size is the sweet spot for sharp, vibrant results.
