How to Prepare Artwork for Print: A Beginner’s Guide (DTF Edition)
Klaus Guip
Aug 13, 2025
When it comes to custom garment printing, your design is only as good as the file you send to the printer. Even the best machines can’t fix low-resolution images or poor file preparation. If you’re working with DTF (Direct-to-Film) printing, preparing your artwork properly is the difference between a professional, vibrant print and a blurry disappointment.
At Skar Printing in London, we help clients every day get their artwork print-ready. Here’s a simple beginner’s guide to preparing files correctly for DTF printing.
1. Use the Right File Type
Best formats: Vector files (.AI, .EPS, .SVG) or high-resolution raster files (.PNG, .PSD, .TIFF).
Why: Vector files scale without losing quality, and high-res PNGs preserve sharp details.
Avoid: JPEGs and screenshots — they usually pixelate and print poorly.
2. Resolution Matters (300 DPI Minimum)
Your artwork should be at least 300 DPI (dots per inch) at the size you want it printed.
Low-resolution files (72 DPI from the web) will look pixelated and unprofessional on a T-shirt.
3. Pay Attention to White
This is where DTF printing is different from many other methods:
DTF printers don’t “see” white by default. If you leave parts of your design white, they may print as transparent and the garment colour will show through.
Solution: Make sure any white areas are specifically defined in the file (set as a solid colour layer).
4. Avoid Gradients and Fades
DTF printers cannot print smooth gradients or fading transparencies. These areas often come out blotchy or with visible banding.
Solution: Stick to solid colours, sharp lines, and bold contrasts for best results. If you want a gradient effect, create it using halftones or patterns that DTF can reproduce cleanly.
5. Mind Your Colours
DTF is vibrant, but colours may look slightly different on fabric than on screen.
Use CMYK colour profiles rather than RGB when preparing files for print.
Test print small runs if colour accuracy is critical.
6. Remove Backgrounds
Always send files with a transparent background unless you want a coloured box printed behind your design.
A high-resolution PNG with transparency is usually the best choice for logos or artwork.
7. Size Your Artwork Correctly
Decide the exact placement (e.g. chest logo: 9 × 6 cm, back print: 30 × 20 cm).
Export your file at those dimensions so the printer doesn’t have to guess or resize.
Our Approach at Skar Printing
At Skar Printing, we know not everyone is a designer — that’s why we also offer a design preparation service. If your file isn’t print-ready, we can clean it up, convert it to vector, define white areas, and make sure it’s perfect for DTF printing. That way, your garments always come out looking professional.
